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Finding the Fourth Proportional to 14,607.60, 21,911.40 and 9,067.20

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Solution

The fourth proportional to 14,607.60, 21,911.40 and 9,067.20 is: 13,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,607.60 : 21,911.40 = 9,067.20 : x
  2. Step 2: Convert to fraction form
    14,607.60/21,911.40 = 9,067.20/x
  3. Step 3: Cross multiply
    14,607.60x = 21,911.40 × 9,067.20
  4. Step 4: Simplify right side
    14,607.60x = 198,675,046.08
  5. Step 5: Solve for x
    x = 198,675,046.08/14,607.60
  6. Step 6: Final answer
    x = 13,600.80

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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.