Home / 10,087.08-13,920.60-5,610.66

Finding the Fourth Proportional to 10,087.08, 13,920.60 and 5,610.66

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Solution

The fourth proportional to 10,087.08, 13,920.60 and 5,610.66 is: 7,742.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.08 : 13,920.60 = 5,610.66 : x
  2. Step 2: Convert to fraction form
    10,087.08/13,920.60 = 5,610.66/x
  3. Step 3: Cross multiply
    10,087.08x = 13,920.60 × 5,610.66
  4. Step 4: Simplify right side
    10,087.08x = 78,103,753.60
  5. Step 5: Solve for x
    x = 78,103,753.60/10,087.08
  6. Step 6: Final answer
    x = 7,742.95

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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.