Home / 15,945.39-22,003.70-8,774.08

Finding the Fourth Proportional to 15,945.39, 22,003.70 and 8,774.08

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Solution

The fourth proportional to 15,945.39, 22,003.70 and 8,774.08 is: 12,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945.39 : 22,003.70 = 8,774.08 : x
  2. Step 2: Convert to fraction form
    15,945.39/22,003.70 = 8,774.08/x
  3. Step 3: Cross multiply
    15,945.39x = 22,003.70 × 8,774.08
  4. Step 4: Simplify right side
    15,945.39x = 193,062,199.25
  5. Step 5: Solve for x
    x = 193,062,199.25/15,945.39
  6. Step 6: Final answer
    x = 12,107.71

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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.