Home / 13,714.20-18,926.70-7,747.32

Finding the Fourth Proportional to 13,714.20, 18,926.70 and 7,747.32

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Solution

The fourth proportional to 13,714.20, 18,926.70 and 7,747.32 is: 10,691.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,714.20 : 18,926.70 = 7,747.32 : x
  2. Step 2: Convert to fraction form
    13,714.20/18,926.70 = 7,747.32/x
  3. Step 3: Cross multiply
    13,714.20x = 18,926.70 × 7,747.32
  4. Step 4: Simplify right side
    13,714.20x = 146,631,201.44
  5. Step 5: Solve for x
    x = 146,631,201.44/13,714.20
  6. Step 6: Final answer
    x = 10,691.93

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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.