Home / 10,469.04-15,690.18-4,910.12

Finding the Fourth Proportional to 10,469.04, 15,690.18 and 4,910.12

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Solution

The fourth proportional to 10,469.04, 15,690.18 and 4,910.12 is: 7,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,469.04 : 15,690.18 = 4,910.12 : x
  2. Step 2: Convert to fraction form
    10,469.04/15,690.18 = 4,910.12/x
  3. Step 3: Cross multiply
    10,469.04x = 15,690.18 × 4,910.12
  4. Step 4: Simplify right side
    10,469.04x = 77,040,666.62
  5. Step 5: Solve for x
    x = 77,040,666.62/10,469.04
  6. Step 6: Final answer
    x = 7,358.90

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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.