Home / 8,100.02-12,121.11-5,881.43

Finding the Fourth Proportional to 8,100.02, 12,121.11 and 5,881.43

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Solution

The fourth proportional to 8,100.02, 12,121.11 and 5,881.43 is: 8,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.02 : 12,121.11 = 5,881.43 : x
  2. Step 2: Convert to fraction form
    8,100.02/12,121.11 = 5,881.43/x
  3. Step 3: Cross multiply
    8,100.02x = 12,121.11 × 5,881.43
  4. Step 4: Simplify right side
    8,100.02x = 71,289,459.99
  5. Step 5: Solve for x
    x = 71,289,459.99/8,100.02
  6. Step 6: Final answer
    x = 8,801.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.