Home / 15,381.36-21,223.44-9,092.16

Finding the Fourth Proportional to 15,381.36, 21,223.44 and 9,092.16

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Solution

The fourth proportional to 15,381.36, 21,223.44 and 9,092.16 is: 12,545.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,381.36 : 21,223.44 = 9,092.16 : x
  2. Step 2: Convert to fraction form
    15,381.36/21,223.44 = 9,092.16/x
  3. Step 3: Cross multiply
    15,381.36x = 21,223.44 × 9,092.16
  4. Step 4: Simplify right side
    15,381.36x = 192,966,912.23
  5. Step 5: Solve for x
    x = 192,966,912.23/15,381.36
  6. Step 6: Final answer
    x = 12,545.50

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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.