Home / 12,480.14-17,209.42-9,647.97

Finding the Fourth Proportional to 12,480.14, 17,209.42 and 9,647.97

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Solution

The fourth proportional to 12,480.14, 17,209.42 and 9,647.97 is: 13,304.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.14 : 17,209.42 = 9,647.97 : x
  2. Step 2: Convert to fraction form
    12,480.14/17,209.42 = 9,647.97/x
  3. Step 3: Cross multiply
    12,480.14x = 17,209.42 × 9,647.97
  4. Step 4: Simplify right side
    12,480.14x = 166,035,967.88
  5. Step 5: Solve for x
    x = 166,035,967.88/12,480.14
  6. Step 6: Final answer
    x = 13,304.01

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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.