Home / 15,945.78-22,006.04-8,872.36

Finding the Fourth Proportional to 15,945.78, 22,006.04 and 8,872.36

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Solution

The fourth proportional to 15,945.78, 22,006.04 and 8,872.36 is: 12,244.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945.78 : 22,006.04 = 8,872.36 : x
  2. Step 2: Convert to fraction form
    15,945.78/22,006.04 = 8,872.36/x
  3. Step 3: Cross multiply
    15,945.78x = 22,006.04 × 8,872.36
  4. Step 4: Simplify right side
    15,945.78x = 195,245,509.05
  5. Step 5: Solve for x
    x = 195,245,509.05/15,945.78
  6. Step 6: Final answer
    x = 12,244.34

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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.