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Finding the Fourth Proportional to 12,710.13, 17,535.97 and 7,331.84

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Solution

The fourth proportional to 12,710.13, 17,535.97 and 7,331.84 is: 10,115.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.13 : 17,535.97 = 7,331.84 : x
  2. Step 2: Convert to fraction form
    12,710.13/17,535.97 = 7,331.84/x
  3. Step 3: Cross multiply
    12,710.13x = 17,535.97 × 7,331.84
  4. Step 4: Simplify right side
    12,710.13x = 128,570,889.63
  5. Step 5: Solve for x
    x = 128,570,889.63/12,710.13
  6. Step 6: Final answer
    x = 10,115.62

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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.