Home / 19,169.30-28,724.05-12,134.45

Finding the Fourth Proportional to 19,169.30, 28,724.05 and 12,134.45

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Solution

The fourth proportional to 19,169.30, 28,724.05 and 12,134.45 is: 18,182.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,169.30 : 28,724.05 = 12,134.45 : x
  2. Step 2: Convert to fraction form
    19,169.30/28,724.05 = 12,134.45/x
  3. Step 3: Cross multiply
    19,169.30x = 28,724.05 × 12,134.45
  4. Step 4: Simplify right side
    19,169.30x = 348,550,374.57
  5. Step 5: Solve for x
    x = 348,550,374.57/19,169.30
  6. Step 6: Final answer
    x = 18,182.74

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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.