Home / 8,419.82-11,620.05-4,643.33

Finding the Fourth Proportional to 8,419.82, 11,620.05 and 4,643.33

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Solution

The fourth proportional to 8,419.82, 11,620.05 and 4,643.33 is: 6,408.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.82 : 11,620.05 = 4,643.33 : x
  2. Step 2: Convert to fraction form
    8,419.82/11,620.05 = 4,643.33/x
  3. Step 3: Cross multiply
    8,419.82x = 11,620.05 × 4,643.33
  4. Step 4: Simplify right side
    8,419.82x = 53,955,726.77
  5. Step 5: Solve for x
    x = 53,955,726.77/8,419.82
  6. Step 6: Final answer
    x = 6,408.18

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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.