Home / 8,899.05-12,280.94-4,920.41

Finding the Fourth Proportional to 8,899.05, 12,280.94 and 4,920.41

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Solution

The fourth proportional to 8,899.05, 12,280.94 and 4,920.41 is: 6,790.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.05 : 12,280.94 = 4,920.41 : x
  2. Step 2: Convert to fraction form
    8,899.05/12,280.94 = 4,920.41/x
  3. Step 3: Cross multiply
    8,899.05x = 12,280.94 × 4,920.41
  4. Step 4: Simplify right side
    8,899.05x = 60,427,235.38
  5. Step 5: Solve for x
    x = 60,427,235.38/8,899.05
  6. Step 6: Final answer
    x = 6,790.31

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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.