Home / 18,070.70-27,099.38-6,221.09

Finding the Fourth Proportional to 18,070.70, 27,099.38 and 6,221.09

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Solution

The fourth proportional to 18,070.70, 27,099.38 and 6,221.09 is: 9,329.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,070.70 : 27,099.38 = 6,221.09 : x
  2. Step 2: Convert to fraction form
    18,070.70/27,099.38 = 6,221.09/x
  3. Step 3: Cross multiply
    18,070.70x = 27,099.38 × 6,221.09
  4. Step 4: Simplify right side
    18,070.70x = 168,587,765.23
  5. Step 5: Solve for x
    x = 168,587,765.23/18,070.70
  6. Step 6: Final answer
    x = 9,329.35

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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.