Home / 15,769.70-21,761.19-9,050.59

Finding the Fourth Proportional to 15,769.70, 21,761.19 and 9,050.59

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Solution

The fourth proportional to 15,769.70, 21,761.19 and 9,050.59 is: 12,489.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.70 : 21,761.19 = 9,050.59 : x
  2. Step 2: Convert to fraction form
    15,769.70/21,761.19 = 9,050.59/x
  3. Step 3: Cross multiply
    15,769.70x = 21,761.19 × 9,050.59
  4. Step 4: Simplify right side
    15,769.70x = 196,951,617.75
  5. Step 5: Solve for x
    x = 196,951,617.75/15,769.70
  6. Step 6: Final answer
    x = 12,489.25

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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.