Home / 8,313.57-12,472.70-3,386.75

Finding the Fourth Proportional to 8,313.57, 12,472.70 and 3,386.75

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Solution

The fourth proportional to 8,313.57, 12,472.70 and 3,386.75 is: 5,081.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.57 : 12,472.70 = 3,386.75 : x
  2. Step 2: Convert to fraction form
    8,313.57/12,472.70 = 3,386.75/x
  3. Step 3: Cross multiply
    8,313.57x = 12,472.70 × 3,386.75
  4. Step 4: Simplify right side
    8,313.57x = 42,241,837.43
  5. Step 5: Solve for x
    x = 42,241,837.43/8,313.57
  6. Step 6: Final answer
    x = 5,081.07

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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.