Home / 13,257.22-18,293.89-7,805.43

Finding the Fourth Proportional to 13,257.22, 18,293.89 and 7,805.43

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Solution

The fourth proportional to 13,257.22, 18,293.89 and 7,805.43 is: 10,770.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.22 : 18,293.89 = 7,805.43 : x
  2. Step 2: Convert to fraction form
    13,257.22/18,293.89 = 7,805.43/x
  3. Step 3: Cross multiply
    13,257.22x = 18,293.89 × 7,805.43
  4. Step 4: Simplify right side
    13,257.22x = 142,791,677.82
  5. Step 5: Solve for x
    x = 142,791,677.82/13,257.22
  6. Step 6: Final answer
    x = 10,770.86

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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.