Home / 8,943.21-12,339.14-5,589.44

Finding the Fourth Proportional to 8,943.21, 12,339.14 and 5,589.44

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Solution

The fourth proportional to 8,943.21, 12,339.14 and 5,589.44 is: 7,711.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.21 : 12,339.14 = 5,589.44 : x
  2. Step 2: Convert to fraction form
    8,943.21/12,339.14 = 5,589.44/x
  3. Step 3: Cross multiply
    8,943.21x = 12,339.14 × 5,589.44
  4. Step 4: Simplify right side
    8,943.21x = 68,968,839.31
  5. Step 5: Solve for x
    x = 68,968,839.31/8,943.21
  6. Step 6: Final answer
    x = 7,711.87

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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.