Home / 14,919.68-22,354.32-7,111.28

Finding the Fourth Proportional to 14,919.68, 22,354.32 and 7,111.28

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Solution

The fourth proportional to 14,919.68, 22,354.32 and 7,111.28 is: 10,654.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.68 : 22,354.32 = 7,111.28 : x
  2. Step 2: Convert to fraction form
    14,919.68/22,354.32 = 7,111.28/x
  3. Step 3: Cross multiply
    14,919.68x = 22,354.32 × 7,111.28
  4. Step 4: Simplify right side
    14,919.68x = 158,967,828.73
  5. Step 5: Solve for x
    x = 158,967,828.73/14,919.68
  6. Step 6: Final answer
    x = 10,654.91

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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.