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Finding the Fourth Proportional to 15,156.74, 22,724.22 and 6,386.90

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Solution

The fourth proportional to 15,156.74, 22,724.22 and 6,386.90 is: 9,575.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156.74 : 22,724.22 = 6,386.90 : x
  2. Step 2: Convert to fraction form
    15,156.74/22,724.22 = 6,386.90/x
  3. Step 3: Cross multiply
    15,156.74x = 22,724.22 × 6,386.90
  4. Step 4: Simplify right side
    15,156.74x = 145,137,320.72
  5. Step 5: Solve for x
    x = 145,137,320.72/15,156.74
  6. Step 6: Final answer
    x = 9,575.76

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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.