Home / 9,876.27-13,630.17-5,400.68

Finding the Fourth Proportional to 9,876.27, 13,630.17 and 5,400.68

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Solution

The fourth proportional to 9,876.27, 13,630.17 and 5,400.68 is: 7,453.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876.27 : 13,630.17 = 5,400.68 : x
  2. Step 2: Convert to fraction form
    9,876.27/13,630.17 = 5,400.68/x
  3. Step 3: Cross multiply
    9,876.27x = 13,630.17 × 5,400.68
  4. Step 4: Simplify right side
    9,876.27x = 73,612,138.62
  5. Step 5: Solve for x
    x = 73,612,138.62/9,876.27
  6. Step 6: Final answer
    x = 7,453.44

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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.