Home / 10,453.28-15,670-3,877.76

Finding the Fourth Proportional to 10,453.28, 15,670 and 3,877.76

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Solution

The fourth proportional to 10,453.28, 15,670 and 3,877.76 is: 5,812.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,453.28 : 15,670 = 3,877.76 : x
  2. Step 2: Convert to fraction form
    10,453.28/15,670 = 3,877.76/x
  3. Step 3: Cross multiply
    10,453.28x = 15,670 × 3,877.76
  4. Step 4: Simplify right side
    10,453.28x = 60,764,499.20
  5. Step 5: Solve for x
    x = 60,764,499.20/10,453.28
  6. Step 6: Final answer
    x = 5,812.96

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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.