Home / 15,474.14-21,353.97-8,400.56

Finding the Fourth Proportional to 15,474.14, 21,353.97 and 8,400.56

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Solution

The fourth proportional to 15,474.14, 21,353.97 and 8,400.56 is: 11,592.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.14 : 21,353.97 = 8,400.56 : x
  2. Step 2: Convert to fraction form
    15,474.14/21,353.97 = 8,400.56/x
  3. Step 3: Cross multiply
    15,474.14x = 21,353.97 × 8,400.56
  4. Step 4: Simplify right side
    15,474.14x = 179,385,230.96
  5. Step 5: Solve for x
    x = 179,385,230.96/15,474.14
  6. Step 6: Final answer
    x = 11,592.59

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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.