Home / 14,351.28-21,531.24-5,118

Finding the Fourth Proportional to 14,351.28, 21,531.24 and 5,118

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Solution

The fourth proportional to 14,351.28, 21,531.24 and 5,118 is: 7,678.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,351.28 : 21,531.24 = 5,118 : x
  2. Step 2: Convert to fraction form
    14,351.28/21,531.24 = 5,118/x
  3. Step 3: Cross multiply
    14,351.28x = 21,531.24 × 5,118
  4. Step 4: Simplify right side
    14,351.28x = 110,196,886.32
  5. Step 5: Solve for x
    x = 110,196,886.32/14,351.28
  6. Step 6: Final answer
    x = 7,678.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.