Home / 18,378.96-27,546.56-12,802.12

Finding the Fourth Proportional to 18,378.96, 27,546.56 and 12,802.12

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Solution

The fourth proportional to 18,378.96, 27,546.56 and 12,802.12 is: 19,187.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.96 : 27,546.56 = 12,802.12 : x
  2. Step 2: Convert to fraction form
    18,378.96/27,546.56 = 12,802.12/x
  3. Step 3: Cross multiply
    18,378.96x = 27,546.56 × 12,802.12
  4. Step 4: Simplify right side
    18,378.96x = 352,654,366.71
  5. Step 5: Solve for x
    x = 352,654,366.71/18,378.96
  6. Step 6: Final answer
    x = 19,187.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.