Home / 7,127.10-9,815.13-6,974.46

Finding the Fourth Proportional to 7,127.10, 9,815.13 and 6,974.46

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Solution

The fourth proportional to 7,127.10, 9,815.13 and 6,974.46 is: 9,604.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.10 : 9,815.13 = 6,974.46 : x
  2. Step 2: Convert to fraction form
    7,127.10/9,815.13 = 6,974.46/x
  3. Step 3: Cross multiply
    7,127.10x = 9,815.13 × 6,974.46
  4. Step 4: Simplify right side
    7,127.10x = 68,455,231.58
  5. Step 5: Solve for x
    x = 68,455,231.58/7,127.10
  6. Step 6: Final answer
    x = 9,604.92

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Double scale
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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.