Home / 12,812.67-19,217.15-4,917.18

Finding the Fourth Proportional to 12,812.67, 19,217.15 and 4,917.18

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Solution

The fourth proportional to 12,812.67, 19,217.15 and 4,917.18 is: 7,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812.67 : 19,217.15 = 4,917.18 : x
  2. Step 2: Convert to fraction form
    12,812.67/19,217.15 = 4,917.18/x
  3. Step 3: Cross multiply
    12,812.67x = 19,217.15 × 4,917.18
  4. Step 4: Simplify right side
    12,812.67x = 94,494,125.87
  5. Step 5: Solve for x
    x = 94,494,125.87/12,812.67
  6. Step 6: Final answer
    x = 7,375.05

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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.