Home / 13,163.60-19,643.52-11,761.70

Finding the Fourth Proportional to 13,163.60, 19,643.52 and 11,761.70

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Solution

The fourth proportional to 13,163.60, 19,643.52 and 11,761.70 is: 17,551.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.60 : 19,643.52 = 11,761.70 : x
  2. Step 2: Convert to fraction form
    13,163.60/19,643.52 = 11,761.70/x
  3. Step 3: Cross multiply
    13,163.60x = 19,643.52 × 11,761.70
  4. Step 4: Simplify right side
    13,163.60x = 231,041,090.97
  5. Step 5: Solve for x
    x = 231,041,090.97/13,163.60
  6. Step 6: Final answer
    x = 17,551.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.