Home / 12,520.08-17,277.61-7,214.78

Finding the Fourth Proportional to 12,520.08, 17,277.61 and 7,214.78

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Solution

The fourth proportional to 12,520.08, 17,277.61 and 7,214.78 is: 9,956.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.08 : 17,277.61 = 7,214.78 : x
  2. Step 2: Convert to fraction form
    12,520.08/17,277.61 = 7,214.78/x
  3. Step 3: Cross multiply
    12,520.08x = 17,277.61 × 7,214.78
  4. Step 4: Simplify right side
    12,520.08x = 124,654,155.08
  5. Step 5: Solve for x
    x = 124,654,155.08/12,520.08
  6. Step 6: Final answer
    x = 9,956.34

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.