Home / 10,638.60-15,957.34-3,242.88

Finding the Fourth Proportional to 10,638.60, 15,957.34 and 3,242.88

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Solution

The fourth proportional to 10,638.60, 15,957.34 and 3,242.88 is: 4,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.60 : 15,957.34 = 3,242.88 : x
  2. Step 2: Convert to fraction form
    10,638.60/15,957.34 = 3,242.88/x
  3. Step 3: Cross multiply
    10,638.60x = 15,957.34 × 3,242.88
  4. Step 4: Simplify right side
    10,638.60x = 51,747,738.74
  5. Step 5: Solve for x
    x = 51,747,738.74/10,638.60
  6. Step 6: Final answer
    x = 4,864.15

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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.