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Finding the Fourth Proportional to 15,479.60, 23,221.02 and 9,631.40

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Solution

The fourth proportional to 15,479.60, 23,221.02 and 9,631.40 is: 14,448.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.60 : 23,221.02 = 9,631.40 : x
  2. Step 2: Convert to fraction form
    15,479.60/23,221.02 = 9,631.40/x
  3. Step 3: Cross multiply
    15,479.60x = 23,221.02 × 9,631.40
  4. Step 4: Simplify right side
    15,479.60x = 223,650,932.03
  5. Step 5: Solve for x
    x = 223,650,932.03/15,479.60
  6. Step 6: Final answer
    x = 14,448.11

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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.