Home / 8,419.11-11,617.82-4,642.31

Finding the Fourth Proportional to 8,419.11, 11,617.82 and 4,642.31

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Solution

The fourth proportional to 8,419.11, 11,617.82 and 4,642.31 is: 6,406.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.11 : 11,617.82 = 4,642.31 : x
  2. Step 2: Convert to fraction form
    8,419.11/11,617.82 = 4,642.31/x
  3. Step 3: Cross multiply
    8,419.11x = 11,617.82 × 4,642.31
  4. Step 4: Simplify right side
    8,419.11x = 53,933,440.66
  5. Step 5: Solve for x
    x = 53,933,440.66/8,419.11
  6. Step 6: Final answer
    x = 6,406.07

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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.