Home / 15,452.59-21,324.73-8,379.17

Finding the Fourth Proportional to 15,452.59, 21,324.73 and 8,379.17

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Solution

The fourth proportional to 15,452.59, 21,324.73 and 8,379.17 is: 11,563.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.59 : 21,324.73 = 8,379.17 : x
  2. Step 2: Convert to fraction form
    15,452.59/21,324.73 = 8,379.17/x
  3. Step 3: Cross multiply
    15,452.59x = 21,324.73 × 8,379.17
  4. Step 4: Simplify right side
    15,452.59x = 178,683,537.87
  5. Step 5: Solve for x
    x = 178,683,537.87/15,452.59
  6. Step 6: Final answer
    x = 11,563.34

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Half scale
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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.