Home / 12,659.44-17,445.36-9,115.96

Finding the Fourth Proportional to 12,659.44, 17,445.36 and 9,115.96

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Solution

The fourth proportional to 12,659.44, 17,445.36 and 9,115.96 is: 12,562.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.44 : 17,445.36 = 9,115.96 : x
  2. Step 2: Convert to fraction form
    12,659.44/17,445.36 = 9,115.96/x
  3. Step 3: Cross multiply
    12,659.44x = 17,445.36 × 9,115.96
  4. Step 4: Simplify right side
    12,659.44x = 159,031,203.95
  5. Step 5: Solve for x
    x = 159,031,203.95/12,659.44
  6. Step 6: Final answer
    x = 12,562.26

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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.