Home / 18,756.16-28,139.16-5,608.24

Finding the Fourth Proportional to 18,756.16, 28,139.16 and 5,608.24

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Solution

The fourth proportional to 18,756.16, 28,139.16 and 5,608.24 is: 8,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756.16 : 28,139.16 = 5,608.24 : x
  2. Step 2: Convert to fraction form
    18,756.16/28,139.16 = 5,608.24/x
  3. Step 3: Cross multiply
    18,756.16x = 28,139.16 × 5,608.24
  4. Step 4: Simplify right side
    18,756.16x = 157,811,162.68
  5. Step 5: Solve for x
    x = 157,811,162.68/18,756.16
  6. Step 6: Final answer
    x = 8,413.83

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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.