Home / 16,515.21-22,790.99-9,441.78

Finding the Fourth Proportional to 16,515.21, 22,790.99 and 9,441.78

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Solution

The fourth proportional to 16,515.21, 22,790.99 and 9,441.78 is: 13,029.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,515.21 : 22,790.99 = 9,441.78 : x
  2. Step 2: Convert to fraction form
    16,515.21/22,790.99 = 9,441.78/x
  3. Step 3: Cross multiply
    16,515.21x = 22,790.99 × 9,441.78
  4. Step 4: Simplify right side
    16,515.21x = 215,187,466.35
  5. Step 5: Solve for x
    x = 215,187,466.35/16,515.21
  6. Step 6: Final answer
    x = 13,029.65

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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.