Home / 14,974.80-20,665.36-8,260.68

Finding the Fourth Proportional to 14,974.80, 20,665.36 and 8,260.68

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Solution

The fourth proportional to 14,974.80, 20,665.36 and 8,260.68 is: 11,399.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,974.80 : 20,665.36 = 8,260.68 : x
  2. Step 2: Convert to fraction form
    14,974.80/20,665.36 = 8,260.68/x
  3. Step 3: Cross multiply
    14,974.80x = 20,665.36 × 8,260.68
  4. Step 4: Simplify right side
    14,974.80x = 170,709,926.04
  5. Step 5: Solve for x
    x = 170,709,926.04/14,974.80
  6. Step 6: Final answer
    x = 11,399.81

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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.