Home / 15,614.61-21,548.33-8,540.88

Finding the Fourth Proportional to 15,614.61, 21,548.33 and 8,540.88

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Solution

The fourth proportional to 15,614.61, 21,548.33 and 8,540.88 is: 11,786.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,614.61 : 21,548.33 = 8,540.88 : x
  2. Step 2: Convert to fraction form
    15,614.61/21,548.33 = 8,540.88/x
  3. Step 3: Cross multiply
    15,614.61x = 21,548.33 × 8,540.88
  4. Step 4: Simplify right side
    15,614.61x = 184,041,700.73
  5. Step 5: Solve for x
    x = 184,041,700.73/15,614.61
  6. Step 6: Final answer
    x = 11,786.51

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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.