Home / 7,943.46-11,920.62-5,313.96

Finding the Fourth Proportional to 7,943.46, 11,920.62 and 5,313.96

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Solution

The fourth proportional to 7,943.46, 11,920.62 and 5,313.96 is: 7,974.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.46 : 11,920.62 = 5,313.96 : x
  2. Step 2: Convert to fraction form
    7,943.46/11,920.62 = 5,313.96/x
  3. Step 3: Cross multiply
    7,943.46x = 11,920.62 × 5,313.96
  4. Step 4: Simplify right side
    7,943.46x = 63,345,697.86
  5. Step 5: Solve for x
    x = 63,345,697.86/7,943.46
  6. Step 6: Final answer
    x = 7,974.57

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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.