Home / 15,945.96-22,004.40-8,872.20

Finding the Fourth Proportional to 15,945.96, 22,004.40 and 8,872.20

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Solution

The fourth proportional to 15,945.96, 22,004.40 and 8,872.20 is: 12,243.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945.96 : 22,004.40 = 8,872.20 : x
  2. Step 2: Convert to fraction form
    15,945.96/22,004.40 = 8,872.20/x
  3. Step 3: Cross multiply
    15,945.96x = 22,004.40 × 8,872.20
  4. Step 4: Simplify right side
    15,945.96x = 195,227,437.68
  5. Step 5: Solve for x
    x = 195,227,437.68/15,945.96
  6. Step 6: Final answer
    x = 12,243.07

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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.