Home / 12,181.13-18,177.42-10,868.93

Finding the Fourth Proportional to 12,181.13, 18,177.42 and 10,868.93

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Solution

The fourth proportional to 12,181.13, 18,177.42 and 10,868.93 is: 16,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.13 : 18,177.42 = 10,868.93 : x
  2. Step 2: Convert to fraction form
    12,181.13/18,177.42 = 10,868.93/x
  3. Step 3: Cross multiply
    12,181.13x = 18,177.42 × 10,868.93
  4. Step 4: Simplify right side
    12,181.13x = 197,569,014.67
  5. Step 5: Solve for x
    x = 197,569,014.67/12,181.13
  6. Step 6: Final answer
    x = 16,219.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.