Home / 13,115.42-18,083.52-10,716.53

Finding the Fourth Proportional to 13,115.42, 18,083.52 and 10,716.53

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Solution

The fourth proportional to 13,115.42, 18,083.52 and 10,716.53 is: 14,775.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.42 : 18,083.52 = 10,716.53 : x
  2. Step 2: Convert to fraction form
    13,115.42/18,083.52 = 10,716.53/x
  3. Step 3: Cross multiply
    13,115.42x = 18,083.52 × 10,716.53
  4. Step 4: Simplify right side
    13,115.42x = 193,792,584.59
  5. Step 5: Solve for x
    x = 193,792,584.59/13,115.42
  6. Step 6: Final answer
    x = 14,775.93

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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.