Home / 15,436.79-21,302.82-8,363.19

Finding the Fourth Proportional to 15,436.79, 21,302.82 and 8,363.19

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Solution

The fourth proportional to 15,436.79, 21,302.82 and 8,363.19 is: 11,541.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.79 : 21,302.82 = 8,363.19 : x
  2. Step 2: Convert to fraction form
    15,436.79/21,302.82 = 8,363.19/x
  3. Step 3: Cross multiply
    15,436.79x = 21,302.82 × 8,363.19
  4. Step 4: Simplify right side
    15,436.79x = 178,159,531.20
  5. Step 5: Solve for x
    x = 178,159,531.20/15,436.79
  6. Step 6: Final answer
    x = 11,541.23

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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.