Home / 12,645.72-17,452.04-6,980.94

Finding the Fourth Proportional to 12,645.72, 17,452.04 and 6,980.94

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Solution

The fourth proportional to 12,645.72, 17,452.04 and 6,980.94 is: 9,634.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.72 : 17,452.04 = 6,980.94 : x
  2. Step 2: Convert to fraction form
    12,645.72/17,452.04 = 6,980.94/x
  3. Step 3: Cross multiply
    12,645.72x = 17,452.04 × 6,980.94
  4. Step 4: Simplify right side
    12,645.72x = 121,831,609.21
  5. Step 5: Solve for x
    x = 121,831,609.21/12,645.72
  6. Step 6: Final answer
    x = 9,634.22

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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.