Home / 7,162.76-10,691.80-6,635.15

Finding the Fourth Proportional to 7,162.76, 10,691.80 and 6,635.15

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Solution

The fourth proportional to 7,162.76, 10,691.80 and 6,635.15 is: 9,904.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.76 : 10,691.80 = 6,635.15 : x
  2. Step 2: Convert to fraction form
    7,162.76/10,691.80 = 6,635.15/x
  3. Step 3: Cross multiply
    7,162.76x = 10,691.80 × 6,635.15
  4. Step 4: Simplify right side
    7,162.76x = 70,941,666.82
  5. Step 5: Solve for x
    x = 70,941,666.82/7,162.76
  6. Step 6: Final answer
    x = 9,904.23

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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.