Home / 7,945.46-11,923.62-5,315.96

Finding the Fourth Proportional to 7,945.46, 11,923.62 and 5,315.96

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Solution

The fourth proportional to 7,945.46, 11,923.62 and 5,315.96 is: 7,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.46 : 11,923.62 = 5,315.96 : x
  2. Step 2: Convert to fraction form
    7,945.46/11,923.62 = 5,315.96/x
  3. Step 3: Cross multiply
    7,945.46x = 11,923.62 × 5,315.96
  4. Step 4: Simplify right side
    7,945.46x = 63,385,486.98
  5. Step 5: Solve for x
    x = 63,385,486.98/7,945.46
  6. Step 6: Final answer
    x = 7,977.57

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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.