Home / 10,542.24-15,816.16-3,146.72

Finding the Fourth Proportional to 10,542.24, 15,816.16 and 3,146.72

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Solution

The fourth proportional to 10,542.24, 15,816.16 and 3,146.72 is: 4,720.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.24 : 15,816.16 = 3,146.72 : x
  2. Step 2: Convert to fraction form
    10,542.24/15,816.16 = 3,146.72/x
  3. Step 3: Cross multiply
    10,542.24x = 15,816.16 × 3,146.72
  4. Step 4: Simplify right side
    10,542.24x = 49,769,027.00
  5. Step 5: Solve for x
    x = 49,769,027.00/10,542.24
  6. Step 6: Final answer
    x = 4,720.92

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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.