Home / 19,187.38-28,797.47-7,508.80

Finding the Fourth Proportional to 19,187.38, 28,797.47 and 7,508.80

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Solution

The fourth proportional to 19,187.38, 28,797.47 and 7,508.80 is: 11,269.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.38 : 28,797.47 = 7,508.80 : x
  2. Step 2: Convert to fraction form
    19,187.38/28,797.47 = 7,508.80/x
  3. Step 3: Cross multiply
    19,187.38x = 28,797.47 × 7,508.80
  4. Step 4: Simplify right side
    19,187.38x = 216,234,261.20
  5. Step 5: Solve for x
    x = 216,234,261.20/19,187.38
  6. Step 6: Final answer
    x = 11,269.61

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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.