Home / 18,744.80-28,107.48-9,374.72

Finding the Fourth Proportional to 18,744.80, 28,107.48 and 9,374.72

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Solution

The fourth proportional to 18,744.80, 28,107.48 and 9,374.72 is: 14,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744.80 : 28,107.48 = 9,374.72 : x
  2. Step 2: Convert to fraction form
    18,744.80/28,107.48 = 9,374.72/x
  3. Step 3: Cross multiply
    18,744.80x = 28,107.48 × 9,374.72
  4. Step 4: Simplify right side
    18,744.80x = 263,499,754.91
  5. Step 5: Solve for x
    x = 263,499,754.91/18,744.80
  6. Step 6: Final answer
    x = 14,057.22

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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.