Home / 15,964.80-22,031.40-8,891.84

Finding the Fourth Proportional to 15,964.80, 22,031.40 and 8,891.84

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Solution

The fourth proportional to 15,964.80, 22,031.40 and 8,891.84 is: 12,270.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,964.80 : 22,031.40 = 8,891.84 : x
  2. Step 2: Convert to fraction form
    15,964.80/22,031.40 = 8,891.84/x
  3. Step 3: Cross multiply
    15,964.80x = 22,031.40 × 8,891.84
  4. Step 4: Simplify right side
    15,964.80x = 195,899,683.78
  5. Step 5: Solve for x
    x = 195,899,683.78/15,964.80
  6. Step 6: Final answer
    x = 12,270.73

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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.