Home / 8,899.44-12,280.77-4,920.42

Finding the Fourth Proportional to 8,899.44, 12,280.77 and 4,920.42

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Solution

The fourth proportional to 8,899.44, 12,280.77 and 4,920.42 is: 6,789.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.44 : 12,280.77 = 4,920.42 : x
  2. Step 2: Convert to fraction form
    8,899.44/12,280.77 = 4,920.42/x
  3. Step 3: Cross multiply
    8,899.44x = 12,280.77 × 4,920.42
  4. Step 4: Simplify right side
    8,899.44x = 60,426,546.32
  5. Step 5: Solve for x
    x = 60,426,546.32/8,899.44
  6. Step 6: Final answer
    x = 6,789.93

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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.