Home / 8,645.14-11,931.45-5,061.20

Finding the Fourth Proportional to 8,645.14, 11,931.45 and 5,061.20

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Solution

The fourth proportional to 8,645.14, 11,931.45 and 5,061.20 is: 6,985.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.14 : 11,931.45 = 5,061.20 : x
  2. Step 2: Convert to fraction form
    8,645.14/11,931.45 = 5,061.20/x
  3. Step 3: Cross multiply
    8,645.14x = 11,931.45 × 5,061.20
  4. Step 4: Simplify right side
    8,645.14x = 60,387,376.10
  5. Step 5: Solve for x
    x = 60,387,376.10/8,645.14
  6. Step 6: Final answer
    x = 6,985.12

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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.