Home / 10,532.11-15,790.36-4,978.97

Finding the Fourth Proportional to 10,532.11, 15,790.36 and 4,978.97

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Solution

The fourth proportional to 10,532.11, 15,790.36 and 4,978.97 is: 7,464.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,532.11 : 15,790.36 = 4,978.97 : x
  2. Step 2: Convert to fraction form
    10,532.11/15,790.36 = 4,978.97/x
  3. Step 3: Cross multiply
    10,532.11x = 15,790.36 × 4,978.97
  4. Step 4: Simplify right side
    10,532.11x = 78,619,649.78
  5. Step 5: Solve for x
    x = 78,619,649.78/10,532.11
  6. Step 6: Final answer
    x = 7,464.76

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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.