Home / 15,963.36-22,028.76-8,889.60

Finding the Fourth Proportional to 15,963.36, 22,028.76 and 8,889.60

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Solution

The fourth proportional to 15,963.36, 22,028.76 and 8,889.60 is: 12,267.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.36 : 22,028.76 = 8,889.60 : x
  2. Step 2: Convert to fraction form
    15,963.36/22,028.76 = 8,889.60/x
  3. Step 3: Cross multiply
    15,963.36x = 22,028.76 × 8,889.60
  4. Step 4: Simplify right side
    15,963.36x = 195,826,864.90
  5. Step 5: Solve for x
    x = 195,826,864.90/15,963.36
  6. Step 6: Final answer
    x = 12,267.27

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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.