Home / 8,177.14-12,254.91-2,978.02

Finding the Fourth Proportional to 8,177.14, 12,254.91 and 2,978.02

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Solution

The fourth proportional to 8,177.14, 12,254.91 and 2,978.02 is: 4,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177.14 : 12,254.91 = 2,978.02 : x
  2. Step 2: Convert to fraction form
    8,177.14/12,254.91 = 2,978.02/x
  3. Step 3: Cross multiply
    8,177.14x = 12,254.91 × 2,978.02
  4. Step 4: Simplify right side
    8,177.14x = 36,495,367.08
  5. Step 5: Solve for x
    x = 36,495,367.08/8,177.14
  6. Step 6: Final answer
    x = 4,463.10

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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.