Home / 12,682.01-17,495.28-8,207.21

Finding the Fourth Proportional to 12,682.01, 17,495.28 and 8,207.21

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Solution

The fourth proportional to 12,682.01, 17,495.28 and 8,207.21 is: 11,322.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682.01 : 17,495.28 = 8,207.21 : x
  2. Step 2: Convert to fraction form
    12,682.01/17,495.28 = 8,207.21/x
  3. Step 3: Cross multiply
    12,682.01x = 17,495.28 × 8,207.21
  4. Step 4: Simplify right side
    12,682.01x = 143,587,436.97
  5. Step 5: Solve for x
    x = 143,587,436.97/12,682.01
  6. Step 6: Final answer
    x = 11,322.14

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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.