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Finding the Fourth Proportional to 10,073, 15,109.50 and 3,917

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Solution

The fourth proportional to 10,073, 15,109.50 and 3,917 is: 5,875.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,073 : 15,109.50 = 3,917 : x
  2. Step 2: Convert to fraction form
    10,073/15,109.50 = 3,917/x
  3. Step 3: Cross multiply
    10,073x = 15,109.50 × 3,917
  4. Step 4: Simplify right side
    10,073x = 59,183,911.50
  5. Step 5: Solve for x
    x = 59,183,911.50/10,073
  6. Step 6: Final answer
    x = 5,875.50

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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.