Home / 13,605.56-20,364.59-9,198.75

Finding the Fourth Proportional to 13,605.56, 20,364.59 and 9,198.75

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Solution

The fourth proportional to 13,605.56, 20,364.59 and 9,198.75 is: 13,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,605.56 : 20,364.59 = 9,198.75 : x
  2. Step 2: Convert to fraction form
    13,605.56/20,364.59 = 9,198.75/x
  3. Step 3: Cross multiply
    13,605.56x = 20,364.59 × 9,198.75
  4. Step 4: Simplify right side
    13,605.56x = 187,328,726.27
  5. Step 5: Solve for x
    x = 187,328,726.27/13,605.56
  6. Step 6: Final answer
    x = 13,768.55

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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.