Home / 8,899.20-12,281.02-4,920.32

Finding the Fourth Proportional to 8,899.20, 12,281.02 and 4,920.32

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Solution

The fourth proportional to 8,899.20, 12,281.02 and 4,920.32 is: 6,790.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.20 : 12,281.02 = 4,920.32 : x
  2. Step 2: Convert to fraction form
    8,899.20/12,281.02 = 4,920.32/x
  3. Step 3: Cross multiply
    8,899.20x = 12,281.02 × 4,920.32
  4. Step 4: Simplify right side
    8,899.20x = 60,426,548.33
  5. Step 5: Solve for x
    x = 60,426,548.33/8,899.20
  6. Step 6: Final answer
    x = 6,790.11

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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.