Home / 8,818.99-12,170.78-6,165.43

Finding the Fourth Proportional to 8,818.99, 12,170.78 and 6,165.43

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Solution

The fourth proportional to 8,818.99, 12,170.78 and 6,165.43 is: 8,508.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.99 : 12,170.78 = 6,165.43 : x
  2. Step 2: Convert to fraction form
    8,818.99/12,170.78 = 6,165.43/x
  3. Step 3: Cross multiply
    8,818.99x = 12,170.78 × 6,165.43
  4. Step 4: Simplify right side
    8,818.99x = 75,038,092.14
  5. Step 5: Solve for x
    x = 75,038,092.14/8,818.99
  6. Step 6: Final answer
    x = 8,508.69

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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.