Home / 15,553.36-21,463.86-8,480.14

Finding the Fourth Proportional to 15,553.36, 21,463.86 and 8,480.14

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Solution

The fourth proportional to 15,553.36, 21,463.86 and 8,480.14 is: 11,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.36 : 21,463.86 = 8,480.14 : x
  2. Step 2: Convert to fraction form
    15,553.36/21,463.86 = 8,480.14/x
  3. Step 3: Cross multiply
    15,553.36x = 21,463.86 × 8,480.14
  4. Step 4: Simplify right side
    15,553.36x = 182,016,537.74
  5. Step 5: Solve for x
    x = 182,016,537.74/15,553.36
  6. Step 6: Final answer
    x = 11,702.71

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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.