Home / 12,931.68-19,397.14-3,572.26

Finding the Fourth Proportional to 12,931.68, 19,397.14 and 3,572.26

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Solution

The fourth proportional to 12,931.68, 19,397.14 and 3,572.26 is: 5,358.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.68 : 19,397.14 = 3,572.26 : x
  2. Step 2: Convert to fraction form
    12,931.68/19,397.14 = 3,572.26/x
  3. Step 3: Cross multiply
    12,931.68x = 19,397.14 × 3,572.26
  4. Step 4: Simplify right side
    12,931.68x = 69,291,685.72
  5. Step 5: Solve for x
    x = 69,291,685.72/12,931.68
  6. Step 6: Final answer
    x = 5,358.29

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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.