Home / 12,195.10-18,293.26-3,875.76

Finding the Fourth Proportional to 12,195.10, 18,293.26 and 3,875.76

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Solution

The fourth proportional to 12,195.10, 18,293.26 and 3,875.76 is: 5,813.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.10 : 18,293.26 = 3,875.76 : x
  2. Step 2: Convert to fraction form
    12,195.10/18,293.26 = 3,875.76/x
  3. Step 3: Cross multiply
    12,195.10x = 18,293.26 × 3,875.76
  4. Step 4: Simplify right side
    12,195.10x = 70,900,285.38
  5. Step 5: Solve for x
    x = 70,900,285.38/12,195.10
  6. Step 6: Final answer
    x = 5,813.83

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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.