Home / 8,116.25-12,165.26-5,310.47

Finding the Fourth Proportional to 8,116.25, 12,165.26 and 5,310.47

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Solution

The fourth proportional to 8,116.25, 12,165.26 and 5,310.47 is: 7,959.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.25 : 12,165.26 = 5,310.47 : x
  2. Step 2: Convert to fraction form
    8,116.25/12,165.26 = 5,310.47/x
  3. Step 3: Cross multiply
    8,116.25x = 12,165.26 × 5,310.47
  4. Step 4: Simplify right side
    8,116.25x = 64,603,192.61
  5. Step 5: Solve for x
    x = 64,603,192.61/8,116.25
  6. Step 6: Final answer
    x = 7,959.74

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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.