Home / 10,977.12-15,150.24-8,002.80

Finding the Fourth Proportional to 10,977.12, 15,150.24 and 8,002.80

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Solution

The fourth proportional to 10,977.12, 15,150.24 and 8,002.80 is: 11,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.12 : 15,150.24 = 8,002.80 : x
  2. Step 2: Convert to fraction form
    10,977.12/15,150.24 = 8,002.80/x
  3. Step 3: Cross multiply
    10,977.12x = 15,150.24 × 8,002.80
  4. Step 4: Simplify right side
    10,977.12x = 121,244,340.67
  5. Step 5: Solve for x
    x = 121,244,340.67/10,977.12
  6. Step 6: Final answer
    x = 11,045.19

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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.