Home / 10,404.11-15,605.28-4,480.76

Finding the Fourth Proportional to 10,404.11, 15,605.28 and 4,480.76

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Solution

The fourth proportional to 10,404.11, 15,605.28 and 4,480.76 is: 6,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,404.11 : 15,605.28 = 4,480.76 : x
  2. Step 2: Convert to fraction form
    10,404.11/15,605.28 = 4,480.76/x
  3. Step 3: Cross multiply
    10,404.11x = 15,605.28 × 4,480.76
  4. Step 4: Simplify right side
    10,404.11x = 69,923,436.39
  5. Step 5: Solve for x
    x = 69,923,436.39/10,404.11
  6. Step 6: Final answer
    x = 6,720.75

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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.