Home / 8,818.79-12,166.61-5,632.20

Finding the Fourth Proportional to 8,818.79, 12,166.61 and 5,632.20

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Solution

The fourth proportional to 8,818.79, 12,166.61 and 5,632.20 is: 7,770.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.79 : 12,166.61 = 5,632.20 : x
  2. Step 2: Convert to fraction form
    8,818.79/12,166.61 = 5,632.20/x
  3. Step 3: Cross multiply
    8,818.79x = 12,166.61 × 5,632.20
  4. Step 4: Simplify right side
    8,818.79x = 68,524,752.68
  5. Step 5: Solve for x
    x = 68,524,752.68/8,818.79
  6. Step 6: Final answer
    x = 7,770.32

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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.