Home / 6,912.11-10,366.75-1,980.83

Finding the Fourth Proportional to 6,912.11, 10,366.75 and 1,980.83

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Solution

The fourth proportional to 6,912.11, 10,366.75 and 1,980.83 is: 2,970.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.11 : 10,366.75 = 1,980.83 : x
  2. Step 2: Convert to fraction form
    6,912.11/10,366.75 = 1,980.83/x
  3. Step 3: Cross multiply
    6,912.11x = 10,366.75 × 1,980.83
  4. Step 4: Simplify right side
    6,912.11x = 20,534,769.40
  5. Step 5: Solve for x
    x = 20,534,769.40/6,912.11
  6. Step 6: Final answer
    x = 2,970.84

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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.