Home / 7,125.68-10,689.23-5,821.79

Finding the Fourth Proportional to 7,125.68, 10,689.23 and 5,821.79

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Solution

The fourth proportional to 7,125.68, 10,689.23 and 5,821.79 is: 8,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.68 : 10,689.23 = 5,821.79 : x
  2. Step 2: Convert to fraction form
    7,125.68/10,689.23 = 5,821.79/x
  3. Step 3: Cross multiply
    7,125.68x = 10,689.23 × 5,821.79
  4. Step 4: Simplify right side
    7,125.68x = 62,230,413.43
  5. Step 5: Solve for x
    x = 62,230,413.43/7,125.68
  6. Step 6: Final answer
    x = 8,733.26

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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.