Home / 7,982.16-11,938.50-7,391.76

Finding the Fourth Proportional to 7,982.16, 11,938.50 and 7,391.76

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Solution

The fourth proportional to 7,982.16, 11,938.50 and 7,391.76 is: 11,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.16 : 11,938.50 = 7,391.76 : x
  2. Step 2: Convert to fraction form
    7,982.16/11,938.50 = 7,391.76/x
  3. Step 3: Cross multiply
    7,982.16x = 11,938.50 × 7,391.76
  4. Step 4: Simplify right side
    7,982.16x = 88,246,526.76
  5. Step 5: Solve for x
    x = 88,246,526.76/7,982.16
  6. Step 6: Final answer
    x = 11,055.47

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1.5x scale

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.