Home / 10,618.39-15,928.19-3,223.09

Finding the Fourth Proportional to 10,618.39, 15,928.19 and 3,223.09

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Solution

The fourth proportional to 10,618.39, 15,928.19 and 3,223.09 is: 4,834.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.39 : 15,928.19 = 3,223.09 : x
  2. Step 2: Convert to fraction form
    10,618.39/15,928.19 = 3,223.09/x
  3. Step 3: Cross multiply
    10,618.39x = 15,928.19 × 3,223.09
  4. Step 4: Simplify right side
    10,618.39x = 51,337,894.15
  5. Step 5: Solve for x
    x = 51,337,894.15/10,618.39
  6. Step 6: Final answer
    x = 4,834.81

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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.