Home / 15,068.24-20,789.95-11,871.61

Finding the Fourth Proportional to 15,068.24, 20,789.95 and 11,871.61

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Solution

The fourth proportional to 15,068.24, 20,789.95 and 11,871.61 is: 16,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,068.24 : 20,789.95 = 11,871.61 : x
  2. Step 2: Convert to fraction form
    15,068.24/20,789.95 = 11,871.61/x
  3. Step 3: Cross multiply
    15,068.24x = 20,789.95 × 11,871.61
  4. Step 4: Simplify right side
    15,068.24x = 246,810,178.32
  5. Step 5: Solve for x
    x = 246,810,178.32/15,068.24
  6. Step 6: Final answer
    x = 16,379.50

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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.