Home / 9,872.20-13,623.83-5,396.14

Finding the Fourth Proportional to 9,872.20, 13,623.83 and 5,396.14

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Solution

The fourth proportional to 9,872.20, 13,623.83 and 5,396.14 is: 7,446.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,872.20 : 13,623.83 = 5,396.14 : x
  2. Step 2: Convert to fraction form
    9,872.20/13,623.83 = 5,396.14/x
  3. Step 3: Cross multiply
    9,872.20x = 13,623.83 × 5,396.14
  4. Step 4: Simplify right side
    9,872.20x = 73,516,094.02
  5. Step 5: Solve for x
    x = 73,516,094.02/9,872.20
  6. Step 6: Final answer
    x = 7,446.78

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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.