Home / 13,663.73-20,496.79-4,178.18

Finding the Fourth Proportional to 13,663.73, 20,496.79 and 4,178.18

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Solution

The fourth proportional to 13,663.73, 20,496.79 and 4,178.18 is: 6,267.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.73 : 20,496.79 = 4,178.18 : x
  2. Step 2: Convert to fraction form
    13,663.73/20,496.79 = 4,178.18/x
  3. Step 3: Cross multiply
    13,663.73x = 20,496.79 × 4,178.18
  4. Step 4: Simplify right side
    13,663.73x = 85,639,308.39
  5. Step 5: Solve for x
    x = 85,639,308.39/13,663.73
  6. Step 6: Final answer
    x = 6,267.64

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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.