Home / 13,508.74-20,249.34-5,186.62

Finding the Fourth Proportional to 13,508.74, 20,249.34 and 5,186.62

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Solution

The fourth proportional to 13,508.74, 20,249.34 and 5,186.62 is: 7,774.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.74 : 20,249.34 = 5,186.62 : x
  2. Step 2: Convert to fraction form
    13,508.74/20,249.34 = 5,186.62/x
  3. Step 3: Cross multiply
    13,508.74x = 20,249.34 × 5,186.62
  4. Step 4: Simplify right side
    13,508.74x = 105,025,631.83
  5. Step 5: Solve for x
    x = 105,025,631.83/13,508.74
  6. Step 6: Final answer
    x = 7,774.64

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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.