Home / 9,187.85-13,781.75-7,342.58

Finding the Fourth Proportional to 9,187.85, 13,781.75 and 7,342.58

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Solution

The fourth proportional to 9,187.85, 13,781.75 and 7,342.58 is: 11,013.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.85 : 13,781.75 = 7,342.58 : x
  2. Step 2: Convert to fraction form
    9,187.85/13,781.75 = 7,342.58/x
  3. Step 3: Cross multiply
    9,187.85x = 13,781.75 × 7,342.58
  4. Step 4: Simplify right side
    9,187.85x = 101,193,599.66
  5. Step 5: Solve for x
    x = 101,193,599.66/9,187.85
  6. Step 6: Final answer
    x = 11,013.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.