Home / 8,813.97-12,158.37-5,454.65

Finding the Fourth Proportional to 8,813.97, 12,158.37 and 5,454.65

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Solution

The fourth proportional to 8,813.97, 12,158.37 and 5,454.65 is: 7,524.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.97 : 12,158.37 = 5,454.65 : x
  2. Step 2: Convert to fraction form
    8,813.97/12,158.37 = 5,454.65/x
  3. Step 3: Cross multiply
    8,813.97x = 12,158.37 × 5,454.65
  4. Step 4: Simplify right side
    8,813.97x = 66,319,592.13
  5. Step 5: Solve for x
    x = 66,319,592.13/8,813.97
  6. Step 6: Final answer
    x = 7,524.37

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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.