Home / 19,190.88-28,744.65-9,309.38

Finding the Fourth Proportional to 19,190.88, 28,744.65 and 9,309.38

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Solution

The fourth proportional to 19,190.88, 28,744.65 and 9,309.38 is: 13,943.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.88 : 28,744.65 = 9,309.38 : x
  2. Step 2: Convert to fraction form
    19,190.88/28,744.65 = 9,309.38/x
  3. Step 3: Cross multiply
    19,190.88x = 28,744.65 × 9,309.38
  4. Step 4: Simplify right side
    19,190.88x = 267,594,726.09
  5. Step 5: Solve for x
    x = 267,594,726.09/19,190.88
  6. Step 6: Final answer
    x = 13,943.85

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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.