Home / 17,660.28-26,489.61-5,179.80

Finding the Fourth Proportional to 17,660.28, 26,489.61 and 5,179.80

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Solution

The fourth proportional to 17,660.28, 26,489.61 and 5,179.80 is: 7,769.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,660.28 : 26,489.61 = 5,179.80 : x
  2. Step 2: Convert to fraction form
    17,660.28/26,489.61 = 5,179.80/x
  3. Step 3: Cross multiply
    17,660.28x = 26,489.61 × 5,179.80
  4. Step 4: Simplify right side
    17,660.28x = 137,210,881.88
  5. Step 5: Solve for x
    x = 137,210,881.88/17,660.28
  6. Step 6: Final answer
    x = 7,769.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.