Home / 12,441.20-17,190.71-9,943.92

Finding the Fourth Proportional to 12,441.20, 17,190.71 and 9,943.92

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Solution

The fourth proportional to 12,441.20, 17,190.71 and 9,943.92 is: 13,740.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.20 : 17,190.71 = 9,943.92 : x
  2. Step 2: Convert to fraction form
    12,441.20/17,190.71 = 9,943.92/x
  3. Step 3: Cross multiply
    12,441.20x = 17,190.71 × 9,943.92
  4. Step 4: Simplify right side
    12,441.20x = 170,943,069.84
  5. Step 5: Solve for x
    x = 170,943,069.84/12,441.20
  6. Step 6: Final answer
    x = 13,740.08

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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.