Home / 12,445.44-17,175.12-6,856.56

Finding the Fourth Proportional to 12,445.44, 17,175.12 and 6,856.56

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Solution

The fourth proportional to 12,445.44, 17,175.12 and 6,856.56 is: 9,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.44 : 17,175.12 = 6,856.56 : x
  2. Step 2: Convert to fraction form
    12,445.44/17,175.12 = 6,856.56/x
  3. Step 3: Cross multiply
    12,445.44x = 17,175.12 × 6,856.56
  4. Step 4: Simplify right side
    12,445.44x = 117,762,240.79
  5. Step 5: Solve for x
    x = 117,762,240.79/12,445.44
  6. Step 6: Final answer
    x = 9,462.28

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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.