Home / 19,109.04-28,662.96-5,257.92

Finding the Fourth Proportional to 19,109.04, 28,662.96 and 5,257.92

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Solution

The fourth proportional to 19,109.04, 28,662.96 and 5,257.92 is: 7,886.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.04 : 28,662.96 = 5,257.92 : x
  2. Step 2: Convert to fraction form
    19,109.04/28,662.96 = 5,257.92/x
  3. Step 3: Cross multiply
    19,109.04x = 28,662.96 × 5,257.92
  4. Step 4: Simplify right side
    19,109.04x = 150,707,550.64
  5. Step 5: Solve for x
    x = 150,707,550.64/19,109.04
  6. Step 6: Final answer
    x = 7,886.71

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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.