Home / 12,748.36-17,587.82-9,399.14

Finding the Fourth Proportional to 12,748.36, 17,587.82 and 9,399.14

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Solution

The fourth proportional to 12,748.36, 17,587.82 and 9,399.14 is: 12,967.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.36 : 17,587.82 = 9,399.14 : x
  2. Step 2: Convert to fraction form
    12,748.36/17,587.82 = 9,399.14/x
  3. Step 3: Cross multiply
    12,748.36x = 17,587.82 × 9,399.14
  4. Step 4: Simplify right side
    12,748.36x = 165,310,382.47
  5. Step 5: Solve for x
    x = 165,310,382.47/12,748.36
  6. Step 6: Final answer
    x = 12,967.19

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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.