Home / 13,339.62-18,401.22-8,304.66

Finding the Fourth Proportional to 13,339.62, 18,401.22 and 8,304.66

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Solution

The fourth proportional to 13,339.62, 18,401.22 and 8,304.66 is: 11,455.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.62 : 18,401.22 = 8,304.66 : x
  2. Step 2: Convert to fraction form
    13,339.62/18,401.22 = 8,304.66/x
  3. Step 3: Cross multiply
    13,339.62x = 18,401.22 × 8,304.66
  4. Step 4: Simplify right side
    13,339.62x = 152,815,875.69
  5. Step 5: Solve for x
    x = 152,815,875.69/13,339.62
  6. Step 6: Final answer
    x = 11,455.79

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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.