Home / 8,899.26-12,280.86-4,920.30

Finding the Fourth Proportional to 8,899.26, 12,280.86 and 4,920.30

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Solution

The fourth proportional to 8,899.26, 12,280.86 and 4,920.30 is: 6,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.26 : 12,280.86 = 4,920.30 : x
  2. Step 2: Convert to fraction form
    8,899.26/12,280.86 = 4,920.30/x
  3. Step 3: Cross multiply
    8,899.26x = 12,280.86 × 4,920.30
  4. Step 4: Simplify right side
    8,899.26x = 60,425,515.46
  5. Step 5: Solve for x
    x = 60,425,515.46/8,899.26
  6. Step 6: Final answer
    x = 6,789.95

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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.