Home / 14,083.75-21,138.89-8,829.28

Finding the Fourth Proportional to 14,083.75, 21,138.89 and 8,829.28

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Solution

The fourth proportional to 14,083.75, 21,138.89 and 8,829.28 is: 13,252.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,083.75 : 21,138.89 = 8,829.28 : x
  2. Step 2: Convert to fraction form
    14,083.75/21,138.89 = 8,829.28/x
  3. Step 3: Cross multiply
    14,083.75x = 21,138.89 × 8,829.28
  4. Step 4: Simplify right side
    14,083.75x = 186,641,178.70
  5. Step 5: Solve for x
    x = 186,641,178.70/14,083.75
  6. Step 6: Final answer
    x = 13,252.24

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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.