Home / 10,542.42-15,820.65-3,968.82

Finding the Fourth Proportional to 10,542.42, 15,820.65 and 3,968.82

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Solution

The fourth proportional to 10,542.42, 15,820.65 and 3,968.82 is: 5,955.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.42 : 15,820.65 = 3,968.82 : x
  2. Step 2: Convert to fraction form
    10,542.42/15,820.65 = 3,968.82/x
  3. Step 3: Cross multiply
    10,542.42x = 15,820.65 × 3,968.82
  4. Step 4: Simplify right side
    10,542.42x = 62,789,312.13
  5. Step 5: Solve for x
    x = 62,789,312.13/10,542.42
  6. Step 6: Final answer
    x = 5,955.87

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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.