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Finding the Fourth Proportional to 17,138.60, 25,712.70 and 7,282.60

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Solution

The fourth proportional to 17,138.60, 25,712.70 and 7,282.60 is: 10,925.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,138.60 : 25,712.70 = 7,282.60 : x
  2. Step 2: Convert to fraction form
    17,138.60/25,712.70 = 7,282.60/x
  3. Step 3: Cross multiply
    17,138.60x = 25,712.70 × 7,282.60
  4. Step 4: Simplify right side
    17,138.60x = 187,255,309.02
  5. Step 5: Solve for x
    x = 187,255,309.02/17,138.60
  6. Step 6: Final answer
    x = 10,925.94

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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.