Home / 13,348.45-18,419.40-8,632.73

Finding the Fourth Proportional to 13,348.45, 18,419.40 and 8,632.73

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Solution

The fourth proportional to 13,348.45, 18,419.40 and 8,632.73 is: 11,912.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.45 : 18,419.40 = 8,632.73 : x
  2. Step 2: Convert to fraction form
    13,348.45/18,419.40 = 8,632.73/x
  3. Step 3: Cross multiply
    13,348.45x = 18,419.40 × 8,632.73
  4. Step 4: Simplify right side
    13,348.45x = 159,009,649.40
  5. Step 5: Solve for x
    x = 159,009,649.40/13,348.45
  6. Step 6: Final answer
    x = 11,912.22

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.