Home / 15,945.56-22,004.28-8,871.84

Finding the Fourth Proportional to 15,945.56, 22,004.28 and 8,871.84

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Solution

The fourth proportional to 15,945.56, 22,004.28 and 8,871.84 is: 12,242.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945.56 : 22,004.28 = 8,871.84 : x
  2. Step 2: Convert to fraction form
    15,945.56/22,004.28 = 8,871.84/x
  3. Step 3: Cross multiply
    15,945.56x = 22,004.28 × 8,871.84
  4. Step 4: Simplify right side
    15,945.56x = 195,218,451.48
  5. Step 5: Solve for x
    x = 195,218,451.48/15,945.56
  6. Step 6: Final answer
    x = 12,242.81

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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.