Home / 7,726.39-11,589.28-5,379.62

Finding the Fourth Proportional to 7,726.39, 11,589.28 and 5,379.62

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Solution

The fourth proportional to 7,726.39, 11,589.28 and 5,379.62 is: 8,069.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.39 : 11,589.28 = 5,379.62 : x
  2. Step 2: Convert to fraction form
    7,726.39/11,589.28 = 5,379.62/x
  3. Step 3: Cross multiply
    7,726.39x = 11,589.28 × 5,379.62
  4. Step 4: Simplify right side
    7,726.39x = 62,345,851.08
  5. Step 5: Solve for x
    x = 62,345,851.08/7,726.39
  6. Step 6: Final answer
    x = 8,069.21

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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.