Home / 12,654.89-17,463.84-6,989.48

Finding the Fourth Proportional to 12,654.89, 17,463.84 and 6,989.48

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Solution

The fourth proportional to 12,654.89, 17,463.84 and 6,989.48 is: 9,645.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654.89 : 17,463.84 = 6,989.48 : x
  2. Step 2: Convert to fraction form
    12,654.89/17,463.84 = 6,989.48/x
  3. Step 3: Cross multiply
    12,654.89x = 17,463.84 × 6,989.48
  4. Step 4: Simplify right side
    12,654.89x = 122,063,160.40
  5. Step 5: Solve for x
    x = 122,063,160.40/12,654.89
  6. Step 6: Final answer
    x = 9,645.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.