Home / 15,226.39-21,010.39-8,511.18

Finding the Fourth Proportional to 15,226.39, 21,010.39 and 8,511.18

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Solution

The fourth proportional to 15,226.39, 21,010.39 and 8,511.18 is: 11,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,226.39 : 21,010.39 = 8,511.18 : x
  2. Step 2: Convert to fraction form
    15,226.39/21,010.39 = 8,511.18/x
  3. Step 3: Cross multiply
    15,226.39x = 21,010.39 × 8,511.18
  4. Step 4: Simplify right side
    15,226.39x = 178,823,211.16
  5. Step 5: Solve for x
    x = 178,823,211.16/15,226.39
  6. Step 6: Final answer
    x = 11,744.29

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.