Home / 15,305.61-22,936.86-12,171.69

Finding the Fourth Proportional to 15,305.61, 22,936.86 and 12,171.69

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Solution

The fourth proportional to 15,305.61, 22,936.86 and 12,171.69 is: 18,240.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305.61 : 22,936.86 = 12,171.69 : x
  2. Step 2: Convert to fraction form
    15,305.61/22,936.86 = 12,171.69/x
  3. Step 3: Cross multiply
    15,305.61x = 22,936.86 × 12,171.69
  4. Step 4: Simplify right side
    15,305.61x = 279,180,349.49
  5. Step 5: Solve for x
    x = 279,180,349.49/15,305.61
  6. Step 6: Final answer
    x = 18,240.39

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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.