Home / 18,753.44-28,130.15-5,605.38

Finding the Fourth Proportional to 18,753.44, 28,130.15 and 5,605.38

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Solution

The fourth proportional to 18,753.44, 28,130.15 and 5,605.38 is: 8,408.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.44 : 28,130.15 = 5,605.38 : x
  2. Step 2: Convert to fraction form
    18,753.44/28,130.15 = 5,605.38/x
  3. Step 3: Cross multiply
    18,753.44x = 28,130.15 × 5,605.38
  4. Step 4: Simplify right side
    18,753.44x = 157,680,194.22
  5. Step 5: Solve for x
    x = 157,680,194.22/18,753.44
  6. Step 6: Final answer
    x = 8,408.07

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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.