Home / 15,964.77-22,031.42-8,891.45

Finding the Fourth Proportional to 15,964.77, 22,031.42 and 8,891.45

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Solution

The fourth proportional to 15,964.77, 22,031.42 and 8,891.45 is: 12,270.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,964.77 : 22,031.42 = 8,891.45 : x
  2. Step 2: Convert to fraction form
    15,964.77/22,031.42 = 8,891.45/x
  3. Step 3: Cross multiply
    15,964.77x = 22,031.42 × 8,891.45
  4. Step 4: Simplify right side
    15,964.77x = 195,891,114.74
  5. Step 5: Solve for x
    x = 195,891,114.74/15,964.77
  6. Step 6: Final answer
    x = 12,270.21

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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.