Home / 18,413.34-25,390.30-12,434.63

Finding the Fourth Proportional to 18,413.34, 25,390.30 and 12,434.63

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Solution

The fourth proportional to 18,413.34, 25,390.30 and 12,434.63 is: 17,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.34 : 25,390.30 = 12,434.63 : x
  2. Step 2: Convert to fraction form
    18,413.34/25,390.30 = 12,434.63/x
  3. Step 3: Cross multiply
    18,413.34x = 25,390.30 × 12,434.63
  4. Step 4: Simplify right side
    18,413.34x = 315,719,069.60
  5. Step 5: Solve for x
    x = 315,719,069.60/18,413.34
  6. Step 6: Final answer
    x = 17,146.21

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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.