Home / 18,429.83-25,413.06-12,451.11

Finding the Fourth Proportional to 18,429.83, 25,413.06 and 12,451.11

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Solution

The fourth proportional to 18,429.83, 25,413.06 and 12,451.11 is: 17,168.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.83 : 25,413.06 = 12,451.11 : x
  2. Step 2: Convert to fraction form
    18,429.83/25,413.06 = 12,451.11/x
  3. Step 3: Cross multiply
    18,429.83x = 25,413.06 × 12,451.11
  4. Step 4: Simplify right side
    18,429.83x = 316,420,805.50
  5. Step 5: Solve for x
    x = 316,420,805.50/18,429.83
  6. Step 6: Final answer
    x = 17,168.95

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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.