Home / 7,963.82-10,989.11-4,378.18

Finding the Fourth Proportional to 7,963.82, 10,989.11 and 4,378.18

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Solution

The fourth proportional to 7,963.82, 10,989.11 and 4,378.18 is: 6,041.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.82 : 10,989.11 = 4,378.18 : x
  2. Step 2: Convert to fraction form
    7,963.82/10,989.11 = 4,378.18/x
  3. Step 3: Cross multiply
    7,963.82x = 10,989.11 × 4,378.18
  4. Step 4: Simplify right side
    7,963.82x = 48,112,318.15
  5. Step 5: Solve for x
    x = 48,112,318.15/7,963.82
  6. Step 6: Final answer
    x = 6,041.37

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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.