Home / 10,489.73-15,740.07-4,254.35

Finding the Fourth Proportional to 10,489.73, 15,740.07 and 4,254.35

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Solution

The fourth proportional to 10,489.73, 15,740.07 and 4,254.35 is: 6,383.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.73 : 15,740.07 = 4,254.35 : x
  2. Step 2: Convert to fraction form
    10,489.73/15,740.07 = 4,254.35/x
  3. Step 3: Cross multiply
    10,489.73x = 15,740.07 × 4,254.35
  4. Step 4: Simplify right side
    10,489.73x = 66,963,766.80
  5. Step 5: Solve for x
    x = 66,963,766.80/10,489.73
  6. Step 6: Final answer
    x = 6,383.75

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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.