Home / 15,548.07-21,456.30-8,474.49

Finding the Fourth Proportional to 15,548.07, 21,456.30 and 8,474.49

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Solution

The fourth proportional to 15,548.07, 21,456.30 and 8,474.49 is: 11,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.07 : 21,456.30 = 8,474.49 : x
  2. Step 2: Convert to fraction form
    15,548.07/21,456.30 = 8,474.49/x
  3. Step 3: Cross multiply
    15,548.07x = 21,456.30 × 8,474.49
  4. Step 4: Simplify right side
    15,548.07x = 181,831,199.79
  5. Step 5: Solve for x
    x = 181,831,199.79/15,548.07
  6. Step 6: Final answer
    x = 11,694.78

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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.