Home / 15,788.18-21,794.78-10,413.79

Finding the Fourth Proportional to 15,788.18, 21,794.78 and 10,413.79

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Solution

The fourth proportional to 15,788.18, 21,794.78 and 10,413.79 is: 14,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,788.18 : 21,794.78 = 10,413.79 : x
  2. Step 2: Convert to fraction form
    15,788.18/21,794.78 = 10,413.79/x
  3. Step 3: Cross multiply
    15,788.18x = 21,794.78 × 10,413.79
  4. Step 4: Simplify right side
    15,788.18x = 226,966,233.56
  5. Step 5: Solve for x
    x = 226,966,233.56/15,788.18
  6. Step 6: Final answer
    x = 14,375.70

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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.