Home / 18,767.30-28,150.96-7,675.58

Finding the Fourth Proportional to 18,767.30, 28,150.96 and 7,675.58

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Solution

The fourth proportional to 18,767.30, 28,150.96 and 7,675.58 is: 11,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.30 : 28,150.96 = 7,675.58 : x
  2. Step 2: Convert to fraction form
    18,767.30/28,150.96 = 7,675.58/x
  3. Step 3: Cross multiply
    18,767.30x = 28,150.96 × 7,675.58
  4. Step 4: Simplify right side
    18,767.30x = 216,074,945.56
  5. Step 5: Solve for x
    x = 216,074,945.56/18,767.30
  6. Step 6: Final answer
    x = 11,513.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.