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Finding the Fourth Proportional to 8,167.59, 11,271.39 and 6,119.87

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Solution

The fourth proportional to 8,167.59, 11,271.39 and 6,119.87 is: 8,445.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.59 : 11,271.39 = 6,119.87 : x
  2. Step 2: Convert to fraction form
    8,167.59/11,271.39 = 6,119.87/x
  3. Step 3: Cross multiply
    8,167.59x = 11,271.39 × 6,119.87
  4. Step 4: Simplify right side
    8,167.59x = 68,979,385.16
  5. Step 5: Solve for x
    x = 68,979,385.16/8,167.59
  6. Step 6: Final answer
    x = 8,445.50

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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.