Home / 14,931.14-20,604.78-8,217.05

Finding the Fourth Proportional to 14,931.14, 20,604.78 and 8,217.05

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Solution

The fourth proportional to 14,931.14, 20,604.78 and 8,217.05 is: 11,339.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,931.14 : 20,604.78 = 8,217.05 : x
  2. Step 2: Convert to fraction form
    14,931.14/20,604.78 = 8,217.05/x
  3. Step 3: Cross multiply
    14,931.14x = 20,604.78 × 8,217.05
  4. Step 4: Simplify right side
    14,931.14x = 169,310,404.48
  5. Step 5: Solve for x
    x = 169,310,404.48/14,931.14
  6. Step 6: Final answer
    x = 11,339.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.