Home / 13,335.39-18,394.92-8,622.45

Finding the Fourth Proportional to 13,335.39, 18,394.92 and 8,622.45

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Solution

The fourth proportional to 13,335.39, 18,394.92 and 8,622.45 is: 11,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.39 : 18,394.92 = 8,622.45 : x
  2. Step 2: Convert to fraction form
    13,335.39/18,394.92 = 8,622.45/x
  3. Step 3: Cross multiply
    13,335.39x = 18,394.92 × 8,622.45
  4. Step 4: Simplify right side
    13,335.39x = 158,609,277.95
  5. Step 5: Solve for x
    x = 158,609,277.95/13,335.39
  6. Step 6: Final answer
    x = 11,893.86

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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.