Home / 15,965.26-22,031.85-8,891.62

Finding the Fourth Proportional to 15,965.26, 22,031.85 and 8,891.62

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Solution

The fourth proportional to 15,965.26, 22,031.85 and 8,891.62 is: 12,270.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,965.26 : 22,031.85 = 8,891.62 : x
  2. Step 2: Convert to fraction form
    15,965.26/22,031.85 = 8,891.62/x
  3. Step 3: Cross multiply
    15,965.26x = 22,031.85 × 8,891.62
  4. Step 4: Simplify right side
    15,965.26x = 195,898,838.10
  5. Step 5: Solve for x
    x = 195,898,838.10/15,965.26
  6. Step 6: Final answer
    x = 12,270.32

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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.