Home / 12,505.12-18,757.92-4,712.32

Finding the Fourth Proportional to 12,505.12, 18,757.92 and 4,712.32

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Solution

The fourth proportional to 12,505.12, 18,757.92 and 4,712.32 is: 7,068.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.12 : 18,757.92 = 4,712.32 : x
  2. Step 2: Convert to fraction form
    12,505.12/18,757.92 = 4,712.32/x
  3. Step 3: Cross multiply
    12,505.12x = 18,757.92 × 4,712.32
  4. Step 4: Simplify right side
    12,505.12x = 88,393,321.57
  5. Step 5: Solve for x
    x = 88,393,321.57/12,505.12
  6. Step 6: Final answer
    x = 7,068.57

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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.