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Finding the Fourth Proportional to 15,279.92, 22,915.08 and 5,919.29

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Solution

The fourth proportional to 15,279.92, 22,915.08 and 5,919.29 is: 8,877.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279.92 : 22,915.08 = 5,919.29 : x
  2. Step 2: Convert to fraction form
    15,279.92/22,915.08 = 5,919.29/x
  3. Step 3: Cross multiply
    15,279.92x = 22,915.08 × 5,919.29
  4. Step 4: Simplify right side
    15,279.92x = 135,640,889.32
  5. Step 5: Solve for x
    x = 135,640,889.32/15,279.92
  6. Step 6: Final answer
    x = 8,877.07

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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.