Home / 15,548.43-21,456.41-8,474.85

Finding the Fourth Proportional to 15,548.43, 21,456.41 and 8,474.85

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Solution

The fourth proportional to 15,548.43, 21,456.41 and 8,474.85 is: 11,695.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.43 : 21,456.41 = 8,474.85 : x
  2. Step 2: Convert to fraction form
    15,548.43/21,456.41 = 8,474.85/x
  3. Step 3: Cross multiply
    15,548.43x = 21,456.41 × 8,474.85
  4. Step 4: Simplify right side
    15,548.43x = 181,839,886.18
  5. Step 5: Solve for x
    x = 181,839,886.18/15,548.43
  6. Step 6: Final answer
    x = 11,695.06

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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.