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Finding the Fourth Proportional to 17,001.20, 25,501.80 and 5,314.64

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Solution

The fourth proportional to 17,001.20, 25,501.80 and 5,314.64 is: 7,971.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,001.20 : 25,501.80 = 5,314.64 : x
  2. Step 2: Convert to fraction form
    17,001.20/25,501.80 = 5,314.64/x
  3. Step 3: Cross multiply
    17,001.20x = 25,501.80 × 5,314.64
  4. Step 4: Simplify right side
    17,001.20x = 135,532,886.35
  5. Step 5: Solve for x
    x = 135,532,886.35/17,001.20
  6. Step 6: Final answer
    x = 7,971.96

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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.