Home / 8,622.39-12,933.32-2,382.78

Finding the Fourth Proportional to 8,622.39, 12,933.32 and 2,382.78

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Solution

The fourth proportional to 8,622.39, 12,933.32 and 2,382.78 is: 3,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.39 : 12,933.32 = 2,382.78 : x
  2. Step 2: Convert to fraction form
    8,622.39/12,933.32 = 2,382.78/x
  3. Step 3: Cross multiply
    8,622.39x = 12,933.32 × 2,382.78
  4. Step 4: Simplify right side
    8,622.39x = 30,817,256.23
  5. Step 5: Solve for x
    x = 30,817,256.23/8,622.39
  6. Step 6: Final answer
    x = 3,574.10

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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.