Home / 8,982.66-12,400.08-5,582.79

Finding the Fourth Proportional to 8,982.66, 12,400.08 and 5,582.79

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Solution

The fourth proportional to 8,982.66, 12,400.08 and 5,582.79 is: 7,706.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.66 : 12,400.08 = 5,582.79 : x
  2. Step 2: Convert to fraction form
    8,982.66/12,400.08 = 5,582.79/x
  3. Step 3: Cross multiply
    8,982.66x = 12,400.08 × 5,582.79
  4. Step 4: Simplify right side
    8,982.66x = 69,227,042.62
  5. Step 5: Solve for x
    x = 69,227,042.62/8,982.66
  6. Step 6: Final answer
    x = 7,706.74

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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.