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Finding the Fourth Proportional to 14,181.67, 21,253.34 and 10,239.67

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Solution

The fourth proportional to 14,181.67, 21,253.34 and 10,239.67 is: 15,345.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.67 : 21,253.34 = 10,239.67 : x
  2. Step 2: Convert to fraction form
    14,181.67/21,253.34 = 10,239.67/x
  3. Step 3: Cross multiply
    14,181.67x = 21,253.34 × 10,239.67
  4. Step 4: Simplify right side
    14,181.67x = 217,627,136.80
  5. Step 5: Solve for x
    x = 217,627,136.80/14,181.67
  6. Step 6: Final answer
    x = 15,345.66

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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.