Home / 15,963.20-22,028.70-8,889.24

Finding the Fourth Proportional to 15,963.20, 22,028.70 and 8,889.24

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Solution

The fourth proportional to 15,963.20, 22,028.70 and 8,889.24 is: 12,266.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.20 : 22,028.70 = 8,889.24 : x
  2. Step 2: Convert to fraction form
    15,963.20/22,028.70 = 8,889.24/x
  3. Step 3: Cross multiply
    15,963.20x = 22,028.70 × 8,889.24
  4. Step 4: Simplify right side
    15,963.20x = 195,818,401.19
  5. Step 5: Solve for x
    x = 195,818,401.19/15,963.20
  6. Step 6: Final answer
    x = 12,266.86

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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.