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Finding the Fourth Proportional to 8,045.55, 12,070.13 and 2,851.43

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Solution

The fourth proportional to 8,045.55, 12,070.13 and 2,851.43 is: 4,277.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,045.55 : 12,070.13 = 2,851.43 : x
  2. Step 2: Convert to fraction form
    8,045.55/12,070.13 = 2,851.43/x
  3. Step 3: Cross multiply
    8,045.55x = 12,070.13 × 2,851.43
  4. Step 4: Simplify right side
    8,045.55x = 34,417,056.18
  5. Step 5: Solve for x
    x = 34,417,056.18/8,045.55
  6. Step 6: Final answer
    x = 4,277.78

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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.