Home / 19,169.60-28,753.99-5,129.63

Finding the Fourth Proportional to 19,169.60, 28,753.99 and 5,129.63

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Solution

The fourth proportional to 19,169.60, 28,753.99 and 5,129.63 is: 7,694.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,169.60 : 28,753.99 = 5,129.63 : x
  2. Step 2: Convert to fraction form
    19,169.60/28,753.99 = 5,129.63/x
  3. Step 3: Cross multiply
    19,169.60x = 28,753.99 × 5,129.63
  4. Step 4: Simplify right side
    19,169.60x = 147,497,194.04
  5. Step 5: Solve for x
    x = 147,497,194.04/19,169.60
  6. Step 6: Final answer
    x = 7,694.33

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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.