Home / 10,494.87-15,742.27-3,921.57

Finding the Fourth Proportional to 10,494.87, 15,742.27 and 3,921.57

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Solution

The fourth proportional to 10,494.87, 15,742.27 and 3,921.57 is: 5,882.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,494.87 : 15,742.27 = 3,921.57 : x
  2. Step 2: Convert to fraction form
    10,494.87/15,742.27 = 3,921.57/x
  3. Step 3: Cross multiply
    10,494.87x = 15,742.27 × 3,921.57
  4. Step 4: Simplify right side
    10,494.87x = 61,734,413.76
  5. Step 5: Solve for x
    x = 61,734,413.76/10,494.87
  6. Step 6: Final answer
    x = 5,882.34

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1.5x scale

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.