Home / 8,814.22-12,158.71-5,454.90

Finding the Fourth Proportional to 8,814.22, 12,158.71 and 5,454.90

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Solution

The fourth proportional to 8,814.22, 12,158.71 and 5,454.90 is: 7,524.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.22 : 12,158.71 = 5,454.90 : x
  2. Step 2: Convert to fraction form
    8,814.22/12,158.71 = 5,454.90/x
  3. Step 3: Cross multiply
    8,814.22x = 12,158.71 × 5,454.90
  4. Step 4: Simplify right side
    8,814.22x = 66,324,547.18
  5. Step 5: Solve for x
    x = 66,324,547.18/8,814.22
  6. Step 6: Final answer
    x = 7,524.72

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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.