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Finding the Fourth Proportional to 10,944.36, 16,401.42 and 9,479.88

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Solution

The fourth proportional to 10,944.36, 16,401.42 and 9,479.88 is: 14,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,944.36 : 16,401.42 = 9,479.88 : x
  2. Step 2: Convert to fraction form
    10,944.36/16,401.42 = 9,479.88/x
  3. Step 3: Cross multiply
    10,944.36x = 16,401.42 × 9,479.88
  4. Step 4: Simplify right side
    10,944.36x = 155,483,493.43
  5. Step 5: Solve for x
    x = 155,483,493.43/10,944.36
  6. Step 6: Final answer
    x = 14,206.72

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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.