Home / 14,939.75-20,618.23-8,226.74

Finding the Fourth Proportional to 14,939.75, 20,618.23 and 8,226.74

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Solution

The fourth proportional to 14,939.75, 20,618.23 and 8,226.74 is: 11,353.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.75 : 20,618.23 = 8,226.74 : x
  2. Step 2: Convert to fraction form
    14,939.75/20,618.23 = 8,226.74/x
  3. Step 3: Cross multiply
    14,939.75x = 20,618.23 × 8,226.74
  4. Step 4: Simplify right side
    14,939.75x = 169,620,817.47
  5. Step 5: Solve for x
    x = 169,620,817.47/14,939.75
  6. Step 6: Final answer
    x = 11,353.66

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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.