Home / 19,666.92-29,506.78-13,119.72

Finding the Fourth Proportional to 19,666.92, 29,506.78 and 13,119.72

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Solution

The fourth proportional to 19,666.92, 29,506.78 and 13,119.72 is: 19,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.92 : 29,506.78 = 13,119.72 : x
  2. Step 2: Convert to fraction form
    19,666.92/29,506.78 = 13,119.72/x
  3. Step 3: Cross multiply
    19,666.92x = 29,506.78 × 13,119.72
  4. Step 4: Simplify right side
    19,666.92x = 387,120,691.70
  5. Step 5: Solve for x
    x = 387,120,691.70/19,666.92
  6. Step 6: Final answer
    x = 19,683.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.