Home / 13,740.14-20,553.78-10,972.24

Finding the Fourth Proportional to 13,740.14, 20,553.78 and 10,972.24

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Solution

The fourth proportional to 13,740.14, 20,553.78 and 10,972.24 is: 16,413.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.14 : 20,553.78 = 10,972.24 : x
  2. Step 2: Convert to fraction form
    13,740.14/20,553.78 = 10,972.24/x
  3. Step 3: Cross multiply
    13,740.14x = 20,553.78 × 10,972.24
  4. Step 4: Simplify right side
    13,740.14x = 225,521,007.07
  5. Step 5: Solve for x
    x = 225,521,007.07/13,740.14
  6. Step 6: Final answer
    x = 16,413.30

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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.