Home / 11,673.39-16,109.20-6,637.61

Finding the Fourth Proportional to 11,673.39, 16,109.20 and 6,637.61

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Solution

The fourth proportional to 11,673.39, 16,109.20 and 6,637.61 is: 9,159.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,673.39 : 16,109.20 = 6,637.61 : x
  2. Step 2: Convert to fraction form
    11,673.39/16,109.20 = 6,637.61/x
  3. Step 3: Cross multiply
    11,673.39x = 16,109.20 × 6,637.61
  4. Step 4: Simplify right side
    11,673.39x = 106,926,473.28
  5. Step 5: Solve for x
    x = 106,926,473.28/11,673.39
  6. Step 6: Final answer
    x = 9,159.85

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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.