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Finding the Fourth Proportional to 15,108.40, 22,662.96 and 5,747.20

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Solution

The fourth proportional to 15,108.40, 22,662.96 and 5,747.20 is: 8,620.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.40 : 22,662.96 = 5,747.20 : x
  2. Step 2: Convert to fraction form
    15,108.40/22,662.96 = 5,747.20/x
  3. Step 3: Cross multiply
    15,108.40x = 22,662.96 × 5,747.20
  4. Step 4: Simplify right side
    15,108.40x = 130,248,563.71
  5. Step 5: Solve for x
    x = 130,248,563.71/15,108.40
  6. Step 6: Final answer
    x = 8,620.94

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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.