Home / 18,228.77-25,160.39-11,871.23

Finding the Fourth Proportional to 18,228.77, 25,160.39 and 11,871.23

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Solution

The fourth proportional to 18,228.77, 25,160.39 and 11,871.23 is: 16,385.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.77 : 25,160.39 = 11,871.23 : x
  2. Step 2: Convert to fraction form
    18,228.77/25,160.39 = 11,871.23/x
  3. Step 3: Cross multiply
    18,228.77x = 25,160.39 × 11,871.23
  4. Step 4: Simplify right side
    18,228.77x = 298,684,591.42
  5. Step 5: Solve for x
    x = 298,684,591.42/18,228.77
  6. Step 6: Final answer
    x = 16,385.34

Related Problems

Find fourth proportional to 9,114.38, 12,580.19 and 5,935.61
Half scale
Find fourth proportional to 36,457.53, 50,320.77 and 23,742.45
Double scale
Find fourth proportional to 18,229.77, 25,161.77 and 11,872.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.