Home / 11,207.28-15,462.42-6,490.64

Finding the Fourth Proportional to 11,207.28, 15,462.42 and 6,490.64

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Solution

The fourth proportional to 11,207.28, 15,462.42 and 6,490.64 is: 8,954.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.28 : 15,462.42 = 6,490.64 : x
  2. Step 2: Convert to fraction form
    11,207.28/15,462.42 = 6,490.64/x
  3. Step 3: Cross multiply
    11,207.28x = 15,462.42 × 6,490.64
  4. Step 4: Simplify right side
    11,207.28x = 100,361,001.75
  5. Step 5: Solve for x
    x = 100,361,001.75/11,207.28
  6. Step 6: Final answer
    x = 8,954.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.