Home / 10,206.16-15,308.16-3,280.12

Finding the Fourth Proportional to 10,206.16, 15,308.16 and 3,280.12

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Solution

The fourth proportional to 10,206.16, 15,308.16 and 3,280.12 is: 4,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.16 : 15,308.16 = 3,280.12 : x
  2. Step 2: Convert to fraction form
    10,206.16/15,308.16 = 3,280.12/x
  3. Step 3: Cross multiply
    10,206.16x = 15,308.16 × 3,280.12
  4. Step 4: Simplify right side
    10,206.16x = 50,212,601.78
  5. Step 5: Solve for x
    x = 50,212,601.78/10,206.16
  6. Step 6: Final answer
    x = 4,919.83

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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.