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Finding the Fourth Proportional to 36,213, 54,317.04 and 9,918

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Solution

The fourth proportional to 36,213, 54,317.04 and 9,918 is: 14,876.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,213 : 54,317.04 = 9,918 : x
  2. Step 2: Convert to fraction form
    36,213/54,317.04 = 9,918/x
  3. Step 3: Cross multiply
    36,213x = 54,317.04 × 9,918
  4. Step 4: Simplify right side
    36,213x = 538,716,402.72
  5. Step 5: Solve for x
    x = 538,716,402.72/36,213
  6. Step 6: Final answer
    x = 14,876.33

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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.