Home / 12,575.53-17,355.26-8,108.58

Finding the Fourth Proportional to 12,575.53, 17,355.26 and 8,108.58

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Solution

The fourth proportional to 12,575.53, 17,355.26 and 8,108.58 is: 11,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575.53 : 17,355.26 = 8,108.58 : x
  2. Step 2: Convert to fraction form
    12,575.53/17,355.26 = 8,108.58/x
  3. Step 3: Cross multiply
    12,575.53x = 17,355.26 × 8,108.58
  4. Step 4: Simplify right side
    12,575.53x = 140,726,534.40
  5. Step 5: Solve for x
    x = 140,726,534.40/12,575.53
  6. Step 6: Final answer
    x = 11,190.51

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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.