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Finding the Fourth Proportional to 17,020.72, 25,530.72 and 9,125.92

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Solution

The fourth proportional to 17,020.72, 25,530.72 and 9,125.92 is: 13,688.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,020.72 : 25,530.72 = 9,125.92 : x
  2. Step 2: Convert to fraction form
    17,020.72/25,530.72 = 9,125.92/x
  3. Step 3: Cross multiply
    17,020.72x = 25,530.72 × 9,125.92
  4. Step 4: Simplify right side
    17,020.72x = 232,991,308.26
  5. Step 5: Solve for x
    x = 232,991,308.26/17,020.72
  6. Step 6: Final answer
    x = 13,688.69

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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.