Home / 19,171.18-28,769.06-9,305.08

Finding the Fourth Proportional to 19,171.18, 28,769.06 and 9,305.08

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Solution

The fourth proportional to 19,171.18, 28,769.06 and 9,305.08 is: 13,963.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.18 : 28,769.06 = 9,305.08 : x
  2. Step 2: Convert to fraction form
    19,171.18/28,769.06 = 9,305.08/x
  3. Step 3: Cross multiply
    19,171.18x = 28,769.06 × 9,305.08
  4. Step 4: Simplify right side
    19,171.18x = 267,698,404.82
  5. Step 5: Solve for x
    x = 267,698,404.82/19,171.18
  6. Step 6: Final answer
    x = 13,963.59

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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.