Home / 14,931.09-20,604.99-8,217.42

Finding the Fourth Proportional to 14,931.09, 20,604.99 and 8,217.42

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Solution

The fourth proportional to 14,931.09, 20,604.99 and 8,217.42 is: 11,340.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,931.09 : 20,604.99 = 8,217.42 : x
  2. Step 2: Convert to fraction form
    14,931.09/20,604.99 = 8,217.42/x
  3. Step 3: Cross multiply
    14,931.09x = 20,604.99 × 8,217.42
  4. Step 4: Simplify right side
    14,931.09x = 169,319,856.93
  5. Step 5: Solve for x
    x = 169,319,856.93/14,931.09
  6. Step 6: Final answer
    x = 11,340.09

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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.