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Finding the Fourth Proportional to 8,371.32, 12,498.18 and 6,913.32

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Solution

The fourth proportional to 8,371.32, 12,498.18 and 6,913.32 is: 10,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.32 : 12,498.18 = 6,913.32 : x
  2. Step 2: Convert to fraction form
    8,371.32/12,498.18 = 6,913.32/x
  3. Step 3: Cross multiply
    8,371.32x = 12,498.18 × 6,913.32
  4. Step 4: Simplify right side
    8,371.32x = 86,403,917.76
  5. Step 5: Solve for x
    x = 86,403,917.76/8,371.32
  6. Step 6: Final answer
    x = 10,321.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.