Home / 18,994.08-28,491.12-5,144.16

Finding the Fourth Proportional to 18,994.08, 28,491.12 and 5,144.16

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Solution

The fourth proportional to 18,994.08, 28,491.12 and 5,144.16 is: 7,716.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,994.08 : 28,491.12 = 5,144.16 : x
  2. Step 2: Convert to fraction form
    18,994.08/28,491.12 = 5,144.16/x
  3. Step 3: Cross multiply
    18,994.08x = 28,491.12 × 5,144.16
  4. Step 4: Simplify right side
    18,994.08x = 146,562,879.86
  5. Step 5: Solve for x
    x = 146,562,879.86/18,994.08
  6. Step 6: Final answer
    x = 7,716.24

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Similar ratio
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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.