Home / 13,886.14-19,162.52-8,220.96

Finding the Fourth Proportional to 13,886.14, 19,162.52 and 8,220.96

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Solution

The fourth proportional to 13,886.14, 19,162.52 and 8,220.96 is: 11,344.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.14 : 19,162.52 = 8,220.96 : x
  2. Step 2: Convert to fraction form
    13,886.14/19,162.52 = 8,220.96/x
  3. Step 3: Cross multiply
    13,886.14x = 19,162.52 × 8,220.96
  4. Step 4: Simplify right side
    13,886.14x = 157,534,310.42
  5. Step 5: Solve for x
    x = 157,534,310.42/13,886.14
  6. Step 6: Final answer
    x = 11,344.72

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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.