Home / 15,474.28-21,350.96-10,447.84

Finding the Fourth Proportional to 15,474.28, 21,350.96 and 10,447.84

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Solution

The fourth proportional to 15,474.28, 21,350.96 and 10,447.84 is: 14,415.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.28 : 21,350.96 = 10,447.84 : x
  2. Step 2: Convert to fraction form
    15,474.28/21,350.96 = 10,447.84/x
  3. Step 3: Cross multiply
    15,474.28x = 21,350.96 × 10,447.84
  4. Step 4: Simplify right side
    15,474.28x = 223,071,413.93
  5. Step 5: Solve for x
    x = 223,071,413.93/15,474.28
  6. Step 6: Final answer
    x = 14,415.62

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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.