Home / 10,614.12-15,921.30-3,218.52

Finding the Fourth Proportional to 10,614.12, 15,921.30 and 3,218.52

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Solution

The fourth proportional to 10,614.12, 15,921.30 and 3,218.52 is: 4,827.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,614.12 : 15,921.30 = 3,218.52 : x
  2. Step 2: Convert to fraction form
    10,614.12/15,921.30 = 3,218.52/x
  3. Step 3: Cross multiply
    10,614.12x = 15,921.30 × 3,218.52
  4. Step 4: Simplify right side
    10,614.12x = 51,243,022.48
  5. Step 5: Solve for x
    x = 51,243,022.48/10,614.12
  6. Step 6: Final answer
    x = 4,827.82

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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.