Home / 10,422.64-15,637.92-6,731.92

Finding the Fourth Proportional to 10,422.64, 15,637.92 and 6,731.92

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Solution

The fourth proportional to 10,422.64, 15,637.92 and 6,731.92 is: 10,100.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.64 : 15,637.92 = 6,731.92 : x
  2. Step 2: Convert to fraction form
    10,422.64/15,637.92 = 6,731.92/x
  3. Step 3: Cross multiply
    10,422.64x = 15,637.92 × 6,731.92
  4. Step 4: Simplify right side
    10,422.64x = 105,273,226.41
  5. Step 5: Solve for x
    x = 105,273,226.41/10,422.64
  6. Step 6: Final answer
    x = 10,100.44

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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.