Home / 14,144.73-21,221.67-4,285.02

Finding the Fourth Proportional to 14,144.73, 21,221.67 and 4,285.02

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Solution

The fourth proportional to 14,144.73, 21,221.67 and 4,285.02 is: 6,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.73 : 21,221.67 = 4,285.02 : x
  2. Step 2: Convert to fraction form
    14,144.73/21,221.67 = 4,285.02/x
  3. Step 3: Cross multiply
    14,144.73x = 21,221.67 × 4,285.02
  4. Step 4: Simplify right side
    14,144.73x = 90,935,280.38
  5. Step 5: Solve for x
    x = 90,935,280.38/14,144.73
  6. Step 6: Final answer
    x = 6,428.92

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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.