Home / 13,830.73-20,747.39-5,508.74

Finding the Fourth Proportional to 13,830.73, 20,747.39 and 5,508.74

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Solution

The fourth proportional to 13,830.73, 20,747.39 and 5,508.74 is: 8,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.73 : 20,747.39 = 5,508.74 : x
  2. Step 2: Convert to fraction form
    13,830.73/20,747.39 = 5,508.74/x
  3. Step 3: Cross multiply
    13,830.73x = 20,747.39 × 5,508.74
  4. Step 4: Simplify right side
    13,830.73x = 114,291,977.19
  5. Step 5: Solve for x
    x = 114,291,977.19/13,830.73
  6. Step 6: Final answer
    x = 8,263.63

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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.