Home / 12,259.17-18,387.72-3,936.96

Finding the Fourth Proportional to 12,259.17, 18,387.72 and 3,936.96

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Solution

The fourth proportional to 12,259.17, 18,387.72 and 3,936.96 is: 5,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259.17 : 18,387.72 = 3,936.96 : x
  2. Step 2: Convert to fraction form
    12,259.17/18,387.72 = 3,936.96/x
  3. Step 3: Cross multiply
    12,259.17x = 18,387.72 × 3,936.96
  4. Step 4: Simplify right side
    12,259.17x = 72,391,718.13
  5. Step 5: Solve for x
    x = 72,391,718.13/12,259.17
  6. Step 6: Final answer
    x = 5,905.11

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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.