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Finding the Fourth Proportional to 14,657.60, 22,002.60 and 9,117.20

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Solution

The fourth proportional to 14,657.60, 22,002.60 and 9,117.20 is: 13,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,657.60 : 22,002.60 = 9,117.20 : x
  2. Step 2: Convert to fraction form
    14,657.60/22,002.60 = 9,117.20/x
  3. Step 3: Cross multiply
    14,657.60x = 22,002.60 × 9,117.20
  4. Step 4: Simplify right side
    14,657.60x = 200,602,104.72
  5. Step 5: Solve for x
    x = 200,602,104.72/14,657.60
  6. Step 6: Final answer
    x = 13,685.88

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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.