Home / 7,773.36-11,656.99-3,387.81

Finding the Fourth Proportional to 7,773.36, 11,656.99 and 3,387.81

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Solution

The fourth proportional to 7,773.36, 11,656.99 and 3,387.81 is: 5,080.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773.36 : 11,656.99 = 3,387.81 : x
  2. Step 2: Convert to fraction form
    7,773.36/11,656.99 = 3,387.81/x
  3. Step 3: Cross multiply
    7,773.36x = 11,656.99 × 3,387.81
  4. Step 4: Simplify right side
    7,773.36x = 39,491,667.29
  5. Step 5: Solve for x
    x = 39,491,667.29/7,773.36
  6. Step 6: Final answer
    x = 5,080.39

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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.