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Finding the Fourth Proportional to 11,000.55, 16,503.88 and 5,079.25

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Solution

The fourth proportional to 11,000.55, 16,503.88 and 5,079.25 is: 7,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.55 : 16,503.88 = 5,079.25 : x
  2. Step 2: Convert to fraction form
    11,000.55/16,503.88 = 5,079.25/x
  3. Step 3: Cross multiply
    11,000.55x = 16,503.88 × 5,079.25
  4. Step 4: Simplify right side
    11,000.55x = 83,827,332.49
  5. Step 5: Solve for x
    x = 83,827,332.49/11,000.55
  6. Step 6: Final answer
    x = 7,620.29

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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.