Home / 13,877.96-20,815.59-7,635.92

Finding the Fourth Proportional to 13,877.96, 20,815.59 and 7,635.92

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Solution

The fourth proportional to 13,877.96, 20,815.59 and 7,635.92 is: 11,453.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.96 : 20,815.59 = 7,635.92 : x
  2. Step 2: Convert to fraction form
    13,877.96/20,815.59 = 7,635.92/x
  3. Step 3: Cross multiply
    13,877.96x = 20,815.59 × 7,635.92
  4. Step 4: Simplify right side
    13,877.96x = 158,946,179.99
  5. Step 5: Solve for x
    x = 158,946,179.99/13,877.96
  6. Step 6: Final answer
    x = 11,453.14

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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.