Home / 13,388.39-18,476.00-8,083.19

Finding the Fourth Proportional to 13,388.39, 18,476.00 and 8,083.19

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Solution

The fourth proportional to 13,388.39, 18,476.00 and 8,083.19 is: 11,154.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.39 : 18,476.00 = 8,083.19 : x
  2. Step 2: Convert to fraction form
    13,388.39/18,476.00 = 8,083.19/x
  3. Step 3: Cross multiply
    13,388.39x = 18,476.00 × 8,083.19
  4. Step 4: Simplify right side
    13,388.39x = 149,345,054.53
  5. Step 5: Solve for x
    x = 149,345,054.53/13,388.39
  6. Step 6: Final answer
    x = 11,154.82

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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.