Home / 13,664.54-18,867.17-8,366.58

Finding the Fourth Proportional to 13,664.54, 18,867.17 and 8,366.58

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Solution

The fourth proportional to 13,664.54, 18,867.17 and 8,366.58 is: 11,552.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.54 : 18,867.17 = 8,366.58 : x
  2. Step 2: Convert to fraction form
    13,664.54/18,867.17 = 8,366.58/x
  3. Step 3: Cross multiply
    13,664.54x = 18,867.17 × 8,366.58
  4. Step 4: Simplify right side
    13,664.54x = 157,853,687.18
  5. Step 5: Solve for x
    x = 157,853,687.18/13,664.54
  6. Step 6: Final answer
    x = 11,552.07

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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.