Home / 15,521.54-23,163.02-13,860.69

Finding the Fourth Proportional to 15,521.54, 23,163.02 and 13,860.69

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Solution

The fourth proportional to 15,521.54, 23,163.02 and 13,860.69 is: 20,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.54 : 23,163.02 = 13,860.69 : x
  2. Step 2: Convert to fraction form
    15,521.54/23,163.02 = 13,860.69/x
  3. Step 3: Cross multiply
    15,521.54x = 23,163.02 × 13,860.69
  4. Step 4: Simplify right side
    15,521.54x = 321,055,370.38
  5. Step 5: Solve for x
    x = 321,055,370.38/15,521.54
  6. Step 6: Final answer
    x = 20,684.51

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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.