Home / 15,548.08-21,456.47-8,474.48

Finding the Fourth Proportional to 15,548.08, 21,456.47 and 8,474.48

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Solution

The fourth proportional to 15,548.08, 21,456.47 and 8,474.48 is: 11,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.08 : 21,456.47 = 8,474.48 : x
  2. Step 2: Convert to fraction form
    15,548.08/21,456.47 = 8,474.48/x
  3. Step 3: Cross multiply
    15,548.08x = 21,456.47 × 8,474.48
  4. Step 4: Simplify right side
    15,548.08x = 181,832,425.89
  5. Step 5: Solve for x
    x = 181,832,425.89/15,548.08
  6. Step 6: Final answer
    x = 11,694.85

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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.