Home / 7,977.88-11,966.82-3,816.10

Finding the Fourth Proportional to 7,977.88, 11,966.82 and 3,816.10

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Solution

The fourth proportional to 7,977.88, 11,966.82 and 3,816.10 is: 5,724.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.88 : 11,966.82 = 3,816.10 : x
  2. Step 2: Convert to fraction form
    7,977.88/11,966.82 = 3,816.10/x
  3. Step 3: Cross multiply
    7,977.88x = 11,966.82 × 3,816.10
  4. Step 4: Simplify right side
    7,977.88x = 45,666,581.80
  5. Step 5: Solve for x
    x = 45,666,581.80/7,977.88
  6. Step 6: Final answer
    x = 5,724.15

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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.