Home / 18,413.28-25,410.30-10,029.78

Finding the Fourth Proportional to 18,413.28, 25,410.30 and 10,029.78

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Solution

The fourth proportional to 18,413.28, 25,410.30 and 10,029.78 is: 13,841.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.28 : 25,410.30 = 10,029.78 : x
  2. Step 2: Convert to fraction form
    18,413.28/25,410.30 = 10,029.78/x
  3. Step 3: Cross multiply
    18,413.28x = 25,410.30 × 10,029.78
  4. Step 4: Simplify right side
    18,413.28x = 254,859,718.73
  5. Step 5: Solve for x
    x = 254,859,718.73/18,413.28
  6. Step 6: Final answer
    x = 13,841.08

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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.