Home / 8,799.16-12,138.24-5,440.90

Finding the Fourth Proportional to 8,799.16, 12,138.24 and 5,440.90

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Solution

The fourth proportional to 8,799.16, 12,138.24 and 5,440.90 is: 7,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.16 : 12,138.24 = 5,440.90 : x
  2. Step 2: Convert to fraction form
    8,799.16/12,138.24 = 5,440.90/x
  3. Step 3: Cross multiply
    8,799.16x = 12,138.24 × 5,440.90
  4. Step 4: Simplify right side
    8,799.16x = 66,042,950.02
  5. Step 5: Solve for x
    x = 66,042,950.02/8,799.16
  6. Step 6: Final answer
    x = 7,505.60

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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.