Home / 15,151.59-22,720.10-6,381.72

Finding the Fourth Proportional to 15,151.59, 22,720.10 and 6,381.72

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Solution

The fourth proportional to 15,151.59, 22,720.10 and 6,381.72 is: 9,569.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,151.59 : 22,720.10 = 6,381.72 : x
  2. Step 2: Convert to fraction form
    15,151.59/22,720.10 = 6,381.72/x
  3. Step 3: Cross multiply
    15,151.59x = 22,720.10 × 6,381.72
  4. Step 4: Simplify right side
    15,151.59x = 144,993,284.66
  5. Step 5: Solve for x
    x = 144,993,284.66/15,151.59
  6. Step 6: Final answer
    x = 9,569.51

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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.