Home / 12,278.24-18,413.40-3,510.80

Finding the Fourth Proportional to 12,278.24, 18,413.40 and 3,510.80

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Solution

The fourth proportional to 12,278.24, 18,413.40 and 3,510.80 is: 5,265.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.24 : 18,413.40 = 3,510.80 : x
  2. Step 2: Convert to fraction form
    12,278.24/18,413.40 = 3,510.80/x
  3. Step 3: Cross multiply
    12,278.24x = 18,413.40 × 3,510.80
  4. Step 4: Simplify right side
    12,278.24x = 64,645,764.72
  5. Step 5: Solve for x
    x = 64,645,764.72/12,278.24
  6. Step 6: Final answer
    x = 5,265.07

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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.