Home / 12,168.45-16,792.47-6,863.31

Finding the Fourth Proportional to 12,168.45, 16,792.47 and 6,863.31

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Solution

The fourth proportional to 12,168.45, 16,792.47 and 6,863.31 is: 9,471.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.45 : 16,792.47 = 6,863.31 : x
  2. Step 2: Convert to fraction form
    12,168.45/16,792.47 = 6,863.31/x
  3. Step 3: Cross multiply
    12,168.45x = 16,792.47 × 6,863.31
  4. Step 4: Simplify right side
    12,168.45x = 115,251,927.28
  5. Step 5: Solve for x
    x = 115,251,927.28/12,168.45
  6. Step 6: Final answer
    x = 9,471.37

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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.