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Finding the Fourth Proportional to 12,882.83, 19,299.08 and 8,879.50

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Solution

The fourth proportional to 12,882.83, 19,299.08 and 8,879.50 is: 13,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882.83 : 19,299.08 = 8,879.50 : x
  2. Step 2: Convert to fraction form
    12,882.83/19,299.08 = 8,879.50/x
  3. Step 3: Cross multiply
    12,882.83x = 19,299.08 × 8,879.50
  4. Step 4: Simplify right side
    12,882.83x = 171,366,154.81
  5. Step 5: Solve for x
    x = 171,366,154.81/12,882.83
  6. Step 6: Final answer
    x = 13,301.90

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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.