Home / 13,363.41-18,440.61-7,394.66

Finding the Fourth Proportional to 13,363.41, 18,440.61 and 7,394.66

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Solution

The fourth proportional to 13,363.41, 18,440.61 and 7,394.66 is: 10,204.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.41 : 18,440.61 = 7,394.66 : x
  2. Step 2: Convert to fraction form
    13,363.41/18,440.61 = 7,394.66/x
  3. Step 3: Cross multiply
    13,363.41x = 18,440.61 × 7,394.66
  4. Step 4: Simplify right side
    13,363.41x = 136,361,948.94
  5. Step 5: Solve for x
    x = 136,361,948.94/13,363.41
  6. Step 6: Final answer
    x = 10,204.13

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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.