Home / 8,696.28-12,001.95-5,714.58

Finding the Fourth Proportional to 8,696.28, 12,001.95 and 5,714.58

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Solution

The fourth proportional to 8,696.28, 12,001.95 and 5,714.58 is: 7,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.28 : 12,001.95 = 5,714.58 : x
  2. Step 2: Convert to fraction form
    8,696.28/12,001.95 = 5,714.58/x
  3. Step 3: Cross multiply
    8,696.28x = 12,001.95 × 5,714.58
  4. Step 4: Simplify right side
    8,696.28x = 68,586,103.43
  5. Step 5: Solve for x
    x = 68,586,103.43/8,696.28
  6. Step 6: Final answer
    x = 7,886.83

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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.