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Finding the Fourth Proportional to 12,808.67, 19,222.74 and 6,239.03

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Solution

The fourth proportional to 12,808.67, 19,222.74 and 6,239.03 is: 9,363.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.67 : 19,222.74 = 6,239.03 : x
  2. Step 2: Convert to fraction form
    12,808.67/19,222.74 = 6,239.03/x
  3. Step 3: Cross multiply
    12,808.67x = 19,222.74 × 6,239.03
  4. Step 4: Simplify right side
    12,808.67x = 119,931,251.54
  5. Step 5: Solve for x
    x = 119,931,251.54/12,808.67
  6. Step 6: Final answer
    x = 9,363.29

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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.