Home / 13,040.06-19,560.13-9,161.78

Finding the Fourth Proportional to 13,040.06, 19,560.13 and 9,161.78

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Solution

The fourth proportional to 13,040.06, 19,560.13 and 9,161.78 is: 13,742.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.06 : 19,560.13 = 9,161.78 : x
  2. Step 2: Convert to fraction form
    13,040.06/19,560.13 = 9,161.78/x
  3. Step 3: Cross multiply
    13,040.06x = 19,560.13 × 9,161.78
  4. Step 4: Simplify right side
    13,040.06x = 179,205,510.03
  5. Step 5: Solve for x
    x = 179,205,510.03/13,040.06
  6. Step 6: Final answer
    x = 13,742.70

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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.