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Finding the Fourth Proportional to 12,659.56, 17,470.14 and 7,070.56

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Solution

The fourth proportional to 12,659.56, 17,470.14 and 7,070.56 is: 9,757.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.56 : 17,470.14 = 7,070.56 : x
  2. Step 2: Convert to fraction form
    12,659.56/17,470.14 = 7,070.56/x
  3. Step 3: Cross multiply
    12,659.56x = 17,470.14 × 7,070.56
  4. Step 4: Simplify right side
    12,659.56x = 123,523,673.08
  5. Step 5: Solve for x
    x = 123,523,673.08/12,659.56
  6. Step 6: Final answer
    x = 9,757.34

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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.