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Finding the Fourth Proportional to 15,147.92, 22,714.92 and 6,378.08

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Solution

The fourth proportional to 15,147.92, 22,714.92 and 6,378.08 is: 9,564.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.92 : 22,714.92 = 6,378.08 : x
  2. Step 2: Convert to fraction form
    15,147.92/22,714.92 = 6,378.08/x
  3. Step 3: Cross multiply
    15,147.92x = 22,714.92 × 6,378.08
  4. Step 4: Simplify right side
    15,147.92x = 144,877,576.95
  5. Step 5: Solve for x
    x = 144,877,576.95/15,147.92
  6. Step 6: Final answer
    x = 9,564.19

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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.