Home / 14,694.20-20,278.02-7,979.84

Finding the Fourth Proportional to 14,694.20, 20,278.02 and 7,979.84

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Solution

The fourth proportional to 14,694.20, 20,278.02 and 7,979.84 is: 11,012.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,694.20 : 20,278.02 = 7,979.84 : x
  2. Step 2: Convert to fraction form
    14,694.20/20,278.02 = 7,979.84/x
  3. Step 3: Cross multiply
    14,694.20x = 20,278.02 × 7,979.84
  4. Step 4: Simplify right side
    14,694.20x = 161,815,355.12
  5. Step 5: Solve for x
    x = 161,815,355.12/14,694.20
  6. Step 6: Final answer
    x = 11,012.19

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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.