Home / 18,347.15-25,329.57-12,077.75

Finding the Fourth Proportional to 18,347.15, 25,329.57 and 12,077.75

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Solution

The fourth proportional to 18,347.15, 25,329.57 and 12,077.75 is: 16,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.15 : 25,329.57 = 12,077.75 : x
  2. Step 2: Convert to fraction form
    18,347.15/25,329.57 = 12,077.75/x
  3. Step 3: Cross multiply
    18,347.15x = 25,329.57 × 12,077.75
  4. Step 4: Simplify right side
    18,347.15x = 305,924,153.68
  5. Step 5: Solve for x
    x = 305,924,153.68/18,347.15
  6. Step 6: Final answer
    x = 16,674.21

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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.