Home / 9,187.20-12,677.28-5,207.52

Finding the Fourth Proportional to 9,187.20, 12,677.28 and 5,207.52

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Solution

The fourth proportional to 9,187.20, 12,677.28 and 5,207.52 is: 7,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.20 : 12,677.28 = 5,207.52 : x
  2. Step 2: Convert to fraction form
    9,187.20/12,677.28 = 5,207.52/x
  3. Step 3: Cross multiply
    9,187.20x = 12,677.28 × 5,207.52
  4. Step 4: Simplify right side
    9,187.20x = 66,017,189.15
  5. Step 5: Solve for x
    x = 66,017,189.15/9,187.20
  6. Step 6: Final answer
    x = 7,185.78

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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.