Home / 14,910.12-20,569.68-8,939.88

Finding the Fourth Proportional to 14,910.12, 20,569.68 and 8,939.88

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Solution

The fourth proportional to 14,910.12, 20,569.68 and 8,939.88 is: 12,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,910.12 : 20,569.68 = 8,939.88 : x
  2. Step 2: Convert to fraction form
    14,910.12/20,569.68 = 8,939.88/x
  3. Step 3: Cross multiply
    14,910.12x = 20,569.68 × 8,939.88
  4. Step 4: Simplify right side
    14,910.12x = 183,890,470.84
  5. Step 5: Solve for x
    x = 183,890,470.84/14,910.12
  6. Step 6: Final answer
    x = 12,333.27

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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.