Home / 15,523.84-21,422.23-8,450.25

Finding the Fourth Proportional to 15,523.84, 21,422.23 and 8,450.25

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Solution

The fourth proportional to 15,523.84, 21,422.23 and 8,450.25 is: 11,660.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.84 : 21,422.23 = 8,450.25 : x
  2. Step 2: Convert to fraction form
    15,523.84/21,422.23 = 8,450.25/x
  3. Step 3: Cross multiply
    15,523.84x = 21,422.23 × 8,450.25
  4. Step 4: Simplify right side
    15,523.84x = 181,023,199.06
  5. Step 5: Solve for x
    x = 181,023,199.06/15,523.84
  6. Step 6: Final answer
    x = 11,660.98

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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.