Home / 9,811.10-14,691.73-5,423.75

Finding the Fourth Proportional to 9,811.10, 14,691.73 and 5,423.75

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Solution

The fourth proportional to 9,811.10, 14,691.73 and 5,423.75 is: 8,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,811.10 : 14,691.73 = 5,423.75 : x
  2. Step 2: Convert to fraction form
    9,811.10/14,691.73 = 5,423.75/x
  3. Step 3: Cross multiply
    9,811.10x = 14,691.73 × 5,423.75
  4. Step 4: Simplify right side
    9,811.10x = 79,684,270.59
  5. Step 5: Solve for x
    x = 79,684,270.59/9,811.10
  6. Step 6: Final answer
    x = 8,121.85

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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.