Home / 8,186.32-12,281.13-2,639.26

Finding the Fourth Proportional to 8,186.32, 12,281.13 and 2,639.26

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Solution

The fourth proportional to 8,186.32, 12,281.13 and 2,639.26 is: 3,959.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.32 : 12,281.13 = 2,639.26 : x
  2. Step 2: Convert to fraction form
    8,186.32/12,281.13 = 2,639.26/x
  3. Step 3: Cross multiply
    8,186.32x = 12,281.13 × 2,639.26
  4. Step 4: Simplify right side
    8,186.32x = 32,413,095.16
  5. Step 5: Solve for x
    x = 32,413,095.16/8,186.32
  6. Step 6: Final answer
    x = 3,959.42

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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.