Home / 13,610.24-20,278.56-12,716.16

Finding the Fourth Proportional to 13,610.24, 20,278.56 and 12,716.16

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Solution

The fourth proportional to 13,610.24, 20,278.56 and 12,716.16 is: 18,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.24 : 20,278.56 = 12,716.16 : x
  2. Step 2: Convert to fraction form
    13,610.24/20,278.56 = 12,716.16/x
  3. Step 3: Cross multiply
    13,610.24x = 20,278.56 × 12,716.16
  4. Step 4: Simplify right side
    13,610.24x = 257,865,413.53
  5. Step 5: Solve for x
    x = 257,865,413.53/13,610.24
  6. Step 6: Final answer
    x = 18,946.43

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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.