Home / 10,258.38-15,390-4,413.42

Finding the Fourth Proportional to 10,258.38, 15,390 and 4,413.42

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Solution

The fourth proportional to 10,258.38, 15,390 and 4,413.42 is: 6,621.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,258.38 : 15,390 = 4,413.42 : x
  2. Step 2: Convert to fraction form
    10,258.38/15,390 = 4,413.42/x
  3. Step 3: Cross multiply
    10,258.38x = 15,390 × 4,413.42
  4. Step 4: Simplify right side
    10,258.38x = 67,922,533.80
  5. Step 5: Solve for x
    x = 67,922,533.80/10,258.38
  6. Step 6: Final answer
    x = 6,621.18

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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.