Home / 8,899.76-12,282.12-4,921.04

Finding the Fourth Proportional to 8,899.76, 12,282.12 and 4,921.04

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Solution

The fourth proportional to 8,899.76, 12,282.12 and 4,921.04 is: 6,791.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.76 : 12,282.12 = 4,921.04 : x
  2. Step 2: Convert to fraction form
    8,899.76/12,282.12 = 4,921.04/x
  3. Step 3: Cross multiply
    8,899.76x = 12,282.12 × 4,921.04
  4. Step 4: Simplify right side
    8,899.76x = 60,440,803.80
  5. Step 5: Solve for x
    x = 60,440,803.80/8,899.76
  6. Step 6: Final answer
    x = 6,791.28

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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.