Home / 15,963.21-22,029.26-8,891.28

Finding the Fourth Proportional to 15,963.21, 22,029.26 and 8,891.28

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Solution

The fourth proportional to 15,963.21, 22,029.26 and 8,891.28 is: 12,269.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.21 : 22,029.26 = 8,891.28 : x
  2. Step 2: Convert to fraction form
    15,963.21/22,029.26 = 8,891.28/x
  3. Step 3: Cross multiply
    15,963.21x = 22,029.26 × 8,891.28
  4. Step 4: Simplify right side
    15,963.21x = 195,868,274.40
  5. Step 5: Solve for x
    x = 195,868,274.40/15,963.21
  6. Step 6: Final answer
    x = 12,269.98

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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.