Home / 15,905.62-21,949.95-8,832.70

Finding the Fourth Proportional to 15,905.62, 21,949.95 and 8,832.70

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Solution

The fourth proportional to 15,905.62, 21,949.95 and 8,832.70 is: 12,189.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.62 : 21,949.95 = 8,832.70 : x
  2. Step 2: Convert to fraction form
    15,905.62/21,949.95 = 8,832.70/x
  3. Step 3: Cross multiply
    15,905.62x = 21,949.95 × 8,832.70
  4. Step 4: Simplify right side
    15,905.62x = 193,877,323.37
  5. Step 5: Solve for x
    x = 193,877,323.37/15,905.62
  6. Step 6: Final answer
    x = 12,189.23

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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.