Home / 15,346.07-21,175.38-8,631.44

Finding the Fourth Proportional to 15,346.07, 21,175.38 and 8,631.44

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Solution

The fourth proportional to 15,346.07, 21,175.38 and 8,631.44 is: 11,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.07 : 21,175.38 = 8,631.44 : x
  2. Step 2: Convert to fraction form
    15,346.07/21,175.38 = 8,631.44/x
  3. Step 3: Cross multiply
    15,346.07x = 21,175.38 × 8,631.44
  4. Step 4: Simplify right side
    15,346.07x = 182,773,916.07
  5. Step 5: Solve for x
    x = 182,773,916.07/15,346.07
  6. Step 6: Final answer
    x = 11,910.15

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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.