Home / 14,115.71-19,479.83-8,146.22

Finding the Fourth Proportional to 14,115.71, 19,479.83 and 8,146.22

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Solution

The fourth proportional to 14,115.71, 19,479.83 and 8,146.22 is: 11,241.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.71 : 19,479.83 = 8,146.22 : x
  2. Step 2: Convert to fraction form
    14,115.71/19,479.83 = 8,146.22/x
  3. Step 3: Cross multiply
    14,115.71x = 19,479.83 × 8,146.22
  4. Step 4: Simplify right side
    14,115.71x = 158,686,842.61
  5. Step 5: Solve for x
    x = 158,686,842.61/14,115.71
  6. Step 6: Final answer
    x = 11,241.86

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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.