Home / 14,689.08-20,270.72-7,974.64

Finding the Fourth Proportional to 14,689.08, 20,270.72 and 7,974.64

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Solution

The fourth proportional to 14,689.08, 20,270.72 and 7,974.64 is: 11,004.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.08 : 20,270.72 = 7,974.64 : x
  2. Step 2: Convert to fraction form
    14,689.08/20,270.72 = 7,974.64/x
  3. Step 3: Cross multiply
    14,689.08x = 20,270.72 × 7,974.64
  4. Step 4: Simplify right side
    14,689.08x = 161,651,694.54
  5. Step 5: Solve for x
    x = 161,651,694.54/14,689.08
  6. Step 6: Final answer
    x = 11,004.89

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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.