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Finding the Fourth Proportional to 15,504.80, 23,257.20 and 9,964.40

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Solution

The fourth proportional to 15,504.80, 23,257.20 and 9,964.40 is: 14,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,504.80 : 23,257.20 = 9,964.40 : x
  2. Step 2: Convert to fraction form
    15,504.80/23,257.20 = 9,964.40/x
  3. Step 3: Cross multiply
    15,504.80x = 23,257.20 × 9,964.40
  4. Step 4: Simplify right side
    15,504.80x = 231,744,043.68
  5. Step 5: Solve for x
    x = 231,744,043.68/15,504.80
  6. Step 6: Final answer
    x = 14,946.60

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Similar ratio
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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.