Home / 18,869.22-28,308.69-7,176.06

Finding the Fourth Proportional to 18,869.22, 28,308.69 and 7,176.06

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Solution

The fourth proportional to 18,869.22, 28,308.69 and 7,176.06 is: 10,765.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.22 : 28,308.69 = 7,176.06 : x
  2. Step 2: Convert to fraction form
    18,869.22/28,308.69 = 7,176.06/x
  3. Step 3: Cross multiply
    18,869.22x = 28,308.69 × 7,176.06
  4. Step 4: Simplify right side
    18,869.22x = 203,144,857.96
  5. Step 5: Solve for x
    x = 203,144,857.96/18,869.22
  6. Step 6: Final answer
    x = 10,765.94

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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.