Home / 15,905.37-21,949.61-8,832.45

Finding the Fourth Proportional to 15,905.37, 21,949.61 and 8,832.45

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Solution

The fourth proportional to 15,905.37, 21,949.61 and 8,832.45 is: 12,188.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.37 : 21,949.61 = 8,832.45 : x
  2. Step 2: Convert to fraction form
    15,905.37/21,949.61 = 8,832.45/x
  3. Step 3: Cross multiply
    15,905.37x = 21,949.61 × 8,832.45
  4. Step 4: Simplify right side
    15,905.37x = 193,868,788.68
  5. Step 5: Solve for x
    x = 193,868,788.68/15,905.37
  6. Step 6: Final answer
    x = 12,188.89

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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.