Home / 6,981.18-9,637.32-3,996.42

Finding the Fourth Proportional to 6,981.18, 9,637.32 and 3,996.42

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Solution

The fourth proportional to 6,981.18, 9,637.32 and 3,996.42 is: 5,516.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.18 : 9,637.32 = 3,996.42 : x
  2. Step 2: Convert to fraction form
    6,981.18/9,637.32 = 3,996.42/x
  3. Step 3: Cross multiply
    6,981.18x = 9,637.32 × 3,996.42
  4. Step 4: Simplify right side
    6,981.18x = 38,514,778.39
  5. Step 5: Solve for x
    x = 38,514,778.39/6,981.18
  6. Step 6: Final answer
    x = 5,516.94

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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.