Home / 7,918.05-10,947.78-6,933.90

Finding the Fourth Proportional to 7,918.05, 10,947.78 and 6,933.90

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Solution

The fourth proportional to 7,918.05, 10,947.78 and 6,933.90 is: 9,587.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.05 : 10,947.78 = 6,933.90 : x
  2. Step 2: Convert to fraction form
    7,918.05/10,947.78 = 6,933.90/x
  3. Step 3: Cross multiply
    7,918.05x = 10,947.78 × 6,933.90
  4. Step 4: Simplify right side
    7,918.05x = 75,910,811.74
  5. Step 5: Solve for x
    x = 75,910,811.74/7,918.05
  6. Step 6: Final answer
    x = 9,587.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.