Home / 15,346.82-21,180.42-8,632.70

Finding the Fourth Proportional to 15,346.82, 21,180.42 and 8,632.70

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Solution

The fourth proportional to 15,346.82, 21,180.42 and 8,632.70 is: 11,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.82 : 21,180.42 = 8,632.70 : x
  2. Step 2: Convert to fraction form
    15,346.82/21,180.42 = 8,632.70/x
  3. Step 3: Cross multiply
    15,346.82x = 21,180.42 × 8,632.70
  4. Step 4: Simplify right side
    15,346.82x = 182,844,211.73
  5. Step 5: Solve for x
    x = 182,844,211.73/15,346.82
  6. Step 6: Final answer
    x = 11,914.14

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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.