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Finding the Fourth Proportional to 18,243.36, 27,345.96 and 10,335.96

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Solution

The fourth proportional to 18,243.36, 27,345.96 and 10,335.96 is: 15,493.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.36 : 27,345.96 = 10,335.96 : x
  2. Step 2: Convert to fraction form
    18,243.36/27,345.96 = 10,335.96/x
  3. Step 3: Cross multiply
    18,243.36x = 27,345.96 × 10,335.96
  4. Step 4: Simplify right side
    18,243.36x = 282,646,748.72
  5. Step 5: Solve for x
    x = 282,646,748.72/18,243.36
  6. Step 6: Final answer
    x = 15,493.13

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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.