Home / 7,398.37-11,101.20-5,221.09

Finding the Fourth Proportional to 7,398.37, 11,101.20 and 5,221.09

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Solution

The fourth proportional to 7,398.37, 11,101.20 and 5,221.09 is: 7,834.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.37 : 11,101.20 = 5,221.09 : x
  2. Step 2: Convert to fraction form
    7,398.37/11,101.20 = 5,221.09/x
  3. Step 3: Cross multiply
    7,398.37x = 11,101.20 × 5,221.09
  4. Step 4: Simplify right side
    7,398.37x = 57,960,364.31
  5. Step 5: Solve for x
    x = 57,960,364.31/7,398.37
  6. Step 6: Final answer
    x = 7,834.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.