Home / 8,143.23-11,230.25-6,886.92

Finding the Fourth Proportional to 8,143.23, 11,230.25 and 6,886.92

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Solution

The fourth proportional to 8,143.23, 11,230.25 and 6,886.92 is: 9,497.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.23 : 11,230.25 = 6,886.92 : x
  2. Step 2: Convert to fraction form
    8,143.23/11,230.25 = 6,886.92/x
  3. Step 3: Cross multiply
    8,143.23x = 11,230.25 × 6,886.92
  4. Step 4: Simplify right side
    8,143.23x = 77,341,841.01
  5. Step 5: Solve for x
    x = 77,341,841.01/8,143.23
  6. Step 6: Final answer
    x = 9,497.68

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Double scale
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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.