Home / 15,901.95-21,945.68-8,828.43

Finding the Fourth Proportional to 15,901.95, 21,945.68 and 8,828.43

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Solution

The fourth proportional to 15,901.95, 21,945.68 and 8,828.43 is: 12,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,901.95 : 21,945.68 = 8,828.43 : x
  2. Step 2: Convert to fraction form
    15,901.95/21,945.68 = 8,828.43/x
  3. Step 3: Cross multiply
    15,901.95x = 21,945.68 × 8,828.43
  4. Step 4: Simplify right side
    15,901.95x = 193,745,856.01
  5. Step 5: Solve for x
    x = 193,745,856.01/15,901.95
  6. Step 6: Final answer
    x = 12,183.78

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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.