Home / 14,974.20-20,666.75-9,884.70

Finding the Fourth Proportional to 14,974.20, 20,666.75 and 9,884.70

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Solution

The fourth proportional to 14,974.20, 20,666.75 and 9,884.70 is: 13,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,974.20 : 20,666.75 = 9,884.70 : x
  2. Step 2: Convert to fraction form
    14,974.20/20,666.75 = 9,884.70/x
  3. Step 3: Cross multiply
    14,974.20x = 20,666.75 × 9,884.70
  4. Step 4: Simplify right side
    14,974.20x = 204,284,574.30
  5. Step 5: Solve for x
    x = 204,284,574.30/14,974.20
  6. Step 6: Final answer
    x = 13,642.44

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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.