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Finding the Fourth Proportional to 15,011.99, 22,496.11 and 8,440.05

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Solution

The fourth proportional to 15,011.99, 22,496.11 and 8,440.05 is: 12,647.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.99 : 22,496.11 = 8,440.05 : x
  2. Step 2: Convert to fraction form
    15,011.99/22,496.11 = 8,440.05/x
  3. Step 3: Cross multiply
    15,011.99x = 22,496.11 × 8,440.05
  4. Step 4: Simplify right side
    15,011.99x = 189,868,293.21
  5. Step 5: Solve for x
    x = 189,868,293.21/15,011.99
  6. Step 6: Final answer
    x = 12,647.78

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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.