Home / 19,171.68-28,769.81-9,305.58

Finding the Fourth Proportional to 19,171.68, 28,769.81 and 9,305.58

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Solution

The fourth proportional to 19,171.68, 28,769.81 and 9,305.58 is: 13,964.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.68 : 28,769.81 = 9,305.58 : x
  2. Step 2: Convert to fraction form
    19,171.68/28,769.81 = 9,305.58/x
  3. Step 3: Cross multiply
    19,171.68x = 28,769.81 × 9,305.58
  4. Step 4: Simplify right side
    19,171.68x = 267,719,768.54
  5. Step 5: Solve for x
    x = 267,719,768.54/19,171.68
  6. Step 6: Final answer
    x = 13,964.34

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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.