Home / 13,714.78-18,926.41-7,427.14

Finding the Fourth Proportional to 13,714.78, 18,926.41 and 7,427.14

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Solution

The fourth proportional to 13,714.78, 18,926.41 and 7,427.14 is: 10,249.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,714.78 : 18,926.41 = 7,427.14 : x
  2. Step 2: Convert to fraction form
    13,714.78/18,926.41 = 7,427.14/x
  3. Step 3: Cross multiply
    13,714.78x = 18,926.41 × 7,427.14
  4. Step 4: Simplify right side
    13,714.78x = 140,569,096.77
  5. Step 5: Solve for x
    x = 140,569,096.77/13,714.78
  6. Step 6: Final answer
    x = 10,249.46

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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.