Home / 16,775.20-25,169.63-8,457.61

Finding the Fourth Proportional to 16,775.20, 25,169.63 and 8,457.61

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Solution

The fourth proportional to 16,775.20, 25,169.63 and 8,457.61 is: 12,689.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,775.20 : 25,169.63 = 8,457.61 : x
  2. Step 2: Convert to fraction form
    16,775.20/25,169.63 = 8,457.61/x
  3. Step 3: Cross multiply
    16,775.20x = 25,169.63 × 8,457.61
  4. Step 4: Simplify right side
    16,775.20x = 212,874,914.38
  5. Step 5: Solve for x
    x = 212,874,914.38/16,775.20
  6. Step 6: Final answer
    x = 12,689.86

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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.