Home / 14,083.38-21,128.31-4,724.64

Finding the Fourth Proportional to 14,083.38, 21,128.31 and 4,724.64

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Solution

The fourth proportional to 14,083.38, 21,128.31 and 4,724.64 is: 7,088.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,083.38 : 21,128.31 = 4,724.64 : x
  2. Step 2: Convert to fraction form
    14,083.38/21,128.31 = 4,724.64/x
  3. Step 3: Cross multiply
    14,083.38x = 21,128.31 × 4,724.64
  4. Step 4: Simplify right side
    14,083.38x = 99,823,658.56
  5. Step 5: Solve for x
    x = 99,823,658.56/14,083.38
  6. Step 6: Final answer
    x = 7,088.05

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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.