Home / 18,817.92-28,227.84-7,132.08

Finding the Fourth Proportional to 18,817.92, 28,227.84 and 7,132.08

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Solution

The fourth proportional to 18,817.92, 28,227.84 and 7,132.08 is: 10,698.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.92 : 28,227.84 = 7,132.08 : x
  2. Step 2: Convert to fraction form
    18,817.92/28,227.84 = 7,132.08/x
  3. Step 3: Cross multiply
    18,817.92x = 28,227.84 × 7,132.08
  4. Step 4: Simplify right side
    18,817.92x = 201,323,213.11
  5. Step 5: Solve for x
    x = 201,323,213.11/18,817.92
  6. Step 6: Final answer
    x = 10,698.48

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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.