Home / 8,914.20-13,366.86-2,989.08

Finding the Fourth Proportional to 8,914.20, 13,366.86 and 2,989.08

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Solution

The fourth proportional to 8,914.20, 13,366.86 and 2,989.08 is: 4,482.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.20 : 13,366.86 = 2,989.08 : x
  2. Step 2: Convert to fraction form
    8,914.20/13,366.86 = 2,989.08/x
  3. Step 3: Cross multiply
    8,914.20x = 13,366.86 × 2,989.08
  4. Step 4: Simplify right side
    8,914.20x = 39,954,613.89
  5. Step 5: Solve for x
    x = 39,954,613.89/8,914.20
  6. Step 6: Final answer
    x = 4,482.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.