Home / 7,489.50-11,177.30-6,659.15

Finding the Fourth Proportional to 7,489.50, 11,177.30 and 6,659.15

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Solution

The fourth proportional to 7,489.50, 11,177.30 and 6,659.15 is: 9,938.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.50 : 11,177.30 = 6,659.15 : x
  2. Step 2: Convert to fraction form
    7,489.50/11,177.30 = 6,659.15/x
  3. Step 3: Cross multiply
    7,489.50x = 11,177.30 × 6,659.15
  4. Step 4: Simplify right side
    7,489.50x = 74,431,312.84
  5. Step 5: Solve for x
    x = 74,431,312.84/7,489.50
  6. Step 6: Final answer
    x = 9,938.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.