Home / 11,230.48-15,498.08-6,515.12

Finding the Fourth Proportional to 11,230.48, 15,498.08 and 6,515.12

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Solution

The fourth proportional to 11,230.48, 15,498.08 and 6,515.12 is: 8,990.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,230.48 : 15,498.08 = 6,515.12 : x
  2. Step 2: Convert to fraction form
    11,230.48/15,498.08 = 6,515.12/x
  3. Step 3: Cross multiply
    11,230.48x = 15,498.08 × 6,515.12
  4. Step 4: Simplify right side
    11,230.48x = 100,971,850.97
  5. Step 5: Solve for x
    x = 100,971,850.97/11,230.48
  6. Step 6: Final answer
    x = 8,990.88

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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.