Home / 9,876.14-13,628.66-5,400.04

Finding the Fourth Proportional to 9,876.14, 13,628.66 and 5,400.04

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Solution

The fourth proportional to 9,876.14, 13,628.66 and 5,400.04 is: 7,451.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876.14 : 13,628.66 = 5,400.04 : x
  2. Step 2: Convert to fraction form
    9,876.14/13,628.66 = 5,400.04/x
  3. Step 3: Cross multiply
    9,876.14x = 13,628.66 × 5,400.04
  4. Step 4: Simplify right side
    9,876.14x = 73,595,309.15
  5. Step 5: Solve for x
    x = 73,595,309.15/9,876.14
  6. Step 6: Final answer
    x = 7,451.83

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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.