Home / 12,515.30-18,758.64-5,932.16

Finding the Fourth Proportional to 12,515.30, 18,758.64 and 5,932.16

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Solution

The fourth proportional to 12,515.30, 18,758.64 and 5,932.16 is: 8,891.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.30 : 18,758.64 = 5,932.16 : x
  2. Step 2: Convert to fraction form
    12,515.30/18,758.64 = 5,932.16/x
  3. Step 3: Cross multiply
    12,515.30x = 18,758.64 × 5,932.16
  4. Step 4: Simplify right side
    12,515.30x = 111,279,253.86
  5. Step 5: Solve for x
    x = 111,279,253.86/12,515.30
  6. Step 6: Final answer
    x = 8,891.46

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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.