Home / 13,473.19-20,209.78-5,155.75

Finding the Fourth Proportional to 13,473.19, 20,209.78 and 5,155.75

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Solution

The fourth proportional to 13,473.19, 20,209.78 and 5,155.75 is: 7,733.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,473.19 : 20,209.78 = 5,155.75 : x
  2. Step 2: Convert to fraction form
    13,473.19/20,209.78 = 5,155.75/x
  3. Step 3: Cross multiply
    13,473.19x = 20,209.78 × 5,155.75
  4. Step 4: Simplify right side
    13,473.19x = 104,196,590.44
  5. Step 5: Solve for x
    x = 104,196,590.44/13,473.19
  6. Step 6: Final answer
    x = 7,733.63

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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.