Home / 11,254.05-16,881.08-8,143.65

Finding the Fourth Proportional to 11,254.05, 16,881.08 and 8,143.65

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Solution

The fourth proportional to 11,254.05, 16,881.08 and 8,143.65 is: 12,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,254.05 : 16,881.08 = 8,143.65 : x
  2. Step 2: Convert to fraction form
    11,254.05/16,881.08 = 8,143.65/x
  3. Step 3: Cross multiply
    11,254.05x = 16,881.08 × 8,143.65
  4. Step 4: Simplify right side
    11,254.05x = 137,473,566.42
  5. Step 5: Solve for x
    x = 137,473,566.42/11,254.05
  6. Step 6: Final answer
    x = 12,215.48

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Double scale
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Similar ratio
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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.