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Finding the Fourth Proportional to 7,122.03, 9,826.26 and 4,137.27

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Solution

The fourth proportional to 7,122.03, 9,826.26 and 4,137.27 is: 5,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.03 : 9,826.26 = 4,137.27 : x
  2. Step 2: Convert to fraction form
    7,122.03/9,826.26 = 4,137.27/x
  3. Step 3: Cross multiply
    7,122.03x = 9,826.26 × 4,137.27
  4. Step 4: Simplify right side
    7,122.03x = 40,653,890.71
  5. Step 5: Solve for x
    x = 40,653,890.71/7,122.03
  6. Step 6: Final answer
    x = 5,708.19

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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.