Home / 7,680.90-10,600.66-5,697.12

Finding the Fourth Proportional to 7,680.90, 10,600.66 and 5,697.12

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Solution

The fourth proportional to 7,680.90, 10,600.66 and 5,697.12 is: 7,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.90 : 10,600.66 = 5,697.12 : x
  2. Step 2: Convert to fraction form
    7,680.90/10,600.66 = 5,697.12/x
  3. Step 3: Cross multiply
    7,680.90x = 10,600.66 × 5,697.12
  4. Step 4: Simplify right side
    7,680.90x = 60,393,232.10
  5. Step 5: Solve for x
    x = 60,393,232.10/7,680.90
  6. Step 6: Final answer
    x = 7,862.78

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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.