Home / 14,769.20-20,382.70-8,397.79

Finding the Fourth Proportional to 14,769.20, 20,382.70 and 8,397.79

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Solution

The fourth proportional to 14,769.20, 20,382.70 and 8,397.79 is: 11,589.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,769.20 : 20,382.70 = 8,397.79 : x
  2. Step 2: Convert to fraction form
    14,769.20/20,382.70 = 8,397.79/x
  3. Step 3: Cross multiply
    14,769.20x = 20,382.70 × 8,397.79
  4. Step 4: Simplify right side
    14,769.20x = 171,169,634.23
  5. Step 5: Solve for x
    x = 171,169,634.23/14,769.20
  6. Step 6: Final answer
    x = 11,589.63

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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.