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Finding the Fourth Proportional to 18,058.78, 24,918.87 and 10,099.72

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Solution

The fourth proportional to 18,058.78, 24,918.87 and 10,099.72 is: 13,936.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,058.78 : 24,918.87 = 10,099.72 : x
  2. Step 2: Convert to fraction form
    18,058.78/24,918.87 = 10,099.72/x
  3. Step 3: Cross multiply
    18,058.78x = 24,918.87 × 10,099.72
  4. Step 4: Simplify right side
    18,058.78x = 251,673,609.72
  5. Step 5: Solve for x
    x = 251,673,609.72/18,058.78
  6. Step 6: Final answer
    x = 13,936.36

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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.