Home / 9,660.80-13,342.56-6,685.76

Finding the Fourth Proportional to 9,660.80, 13,342.56 and 6,685.76

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Solution

The fourth proportional to 9,660.80, 13,342.56 and 6,685.76 is: 9,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.80 : 13,342.56 = 6,685.76 : x
  2. Step 2: Convert to fraction form
    9,660.80/13,342.56 = 6,685.76/x
  3. Step 3: Cross multiply
    9,660.80x = 13,342.56 × 6,685.76
  4. Step 4: Simplify right side
    9,660.80x = 89,205,153.95
  5. Step 5: Solve for x
    x = 89,205,153.95/9,660.80
  6. Step 6: Final answer
    x = 9,233.72

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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.