Home / 12,520.45-18,790.13-8,562.25

Finding the Fourth Proportional to 12,520.45, 18,790.13 and 8,562.25

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Solution

The fourth proportional to 12,520.45, 18,790.13 and 8,562.25 is: 12,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.45 : 18,790.13 = 8,562.25 : x
  2. Step 2: Convert to fraction form
    12,520.45/18,790.13 = 8,562.25/x
  3. Step 3: Cross multiply
    12,520.45x = 18,790.13 × 8,562.25
  4. Step 4: Simplify right side
    12,520.45x = 160,885,790.59
  5. Step 5: Solve for x
    x = 160,885,790.59/12,520.45
  6. Step 6: Final answer
    x = 12,849.84

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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.