Home / 15,905.12-23,857.26-4,218.44

Finding the Fourth Proportional to 15,905.12, 23,857.26 and 4,218.44

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Solution

The fourth proportional to 15,905.12, 23,857.26 and 4,218.44 is: 6,327.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.12 : 23,857.26 = 4,218.44 : x
  2. Step 2: Convert to fraction form
    15,905.12/23,857.26 = 4,218.44/x
  3. Step 3: Cross multiply
    15,905.12x = 23,857.26 × 4,218.44
  4. Step 4: Simplify right side
    15,905.12x = 100,640,419.87
  5. Step 5: Solve for x
    x = 100,640,419.87/15,905.12
  6. Step 6: Final answer
    x = 6,327.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.