Home / 17,565.40-26,335.30-7,171.80

Finding the Fourth Proportional to 17,565.40, 26,335.30 and 7,171.80

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Solution

The fourth proportional to 17,565.40, 26,335.30 and 7,171.80 is: 10,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,565.40 : 26,335.30 = 7,171.80 : x
  2. Step 2: Convert to fraction form
    17,565.40/26,335.30 = 7,171.80/x
  3. Step 3: Cross multiply
    17,565.40x = 26,335.30 × 7,171.80
  4. Step 4: Simplify right side
    17,565.40x = 188,871,504.54
  5. Step 5: Solve for x
    x = 188,871,504.54/17,565.40
  6. Step 6: Final answer
    x = 10,752.47

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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.