Home / 11,311.30-15,610.42-6,275.48

Finding the Fourth Proportional to 11,311.30, 15,610.42 and 6,275.48

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Solution

The fourth proportional to 11,311.30, 15,610.42 and 6,275.48 is: 8,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.30 : 15,610.42 = 6,275.48 : x
  2. Step 2: Convert to fraction form
    11,311.30/15,610.42 = 6,275.48/x
  3. Step 3: Cross multiply
    11,311.30x = 15,610.42 × 6,275.48
  4. Step 4: Simplify right side
    11,311.30x = 97,962,808.29
  5. Step 5: Solve for x
    x = 97,962,808.29/11,311.30
  6. Step 6: Final answer
    x = 8,660.62

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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.