Home / 12,659.32-17,445.19-9,115.84

Finding the Fourth Proportional to 12,659.32, 17,445.19 and 9,115.84

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Solution

The fourth proportional to 12,659.32, 17,445.19 and 9,115.84 is: 12,562.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.32 : 17,445.19 = 9,115.84 : x
  2. Step 2: Convert to fraction form
    12,659.32/17,445.19 = 9,115.84/x
  3. Step 3: Cross multiply
    12,659.32x = 17,445.19 × 9,115.84
  4. Step 4: Simplify right side
    12,659.32x = 159,027,428.00
  5. Step 5: Solve for x
    x = 159,027,428.00/12,659.32
  6. Step 6: Final answer
    x = 12,562.09

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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.