Home / 11,002.90-16,505.74-5,380.76

Finding the Fourth Proportional to 11,002.90, 16,505.74 and 5,380.76

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Solution

The fourth proportional to 11,002.90, 16,505.74 and 5,380.76 is: 8,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,002.90 : 16,505.74 = 5,380.76 : x
  2. Step 2: Convert to fraction form
    11,002.90/16,505.74 = 5,380.76/x
  3. Step 3: Cross multiply
    11,002.90x = 16,505.74 × 5,380.76
  4. Step 4: Simplify right side
    11,002.90x = 88,813,391.48
  5. Step 5: Solve for x
    x = 88,813,391.48/11,002.90
  6. Step 6: Final answer
    x = 8,071.82

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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.