Home / 12,400.86-17,113.31-6,735.66

Finding the Fourth Proportional to 12,400.86, 17,113.31 and 6,735.66

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Solution

The fourth proportional to 12,400.86, 17,113.31 and 6,735.66 is: 9,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.86 : 17,113.31 = 6,735.66 : x
  2. Step 2: Convert to fraction form
    12,400.86/17,113.31 = 6,735.66/x
  3. Step 3: Cross multiply
    12,400.86x = 17,113.31 × 6,735.66
  4. Step 4: Simplify right side
    12,400.86x = 115,269,497.26
  5. Step 5: Solve for x
    x = 115,269,497.26/12,400.86
  6. Step 6: Final answer
    x = 9,295.28

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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.