Home / 12,831.58-17,705.68-7,793.18

Finding the Fourth Proportional to 12,831.58, 17,705.68 and 7,793.18

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Solution

The fourth proportional to 12,831.58, 17,705.68 and 7,793.18 is: 10,753.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.58 : 17,705.68 = 7,793.18 : x
  2. Step 2: Convert to fraction form
    12,831.58/17,705.68 = 7,793.18/x
  3. Step 3: Cross multiply
    12,831.58x = 17,705.68 × 7,793.18
  4. Step 4: Simplify right side
    12,831.58x = 137,983,551.26
  5. Step 5: Solve for x
    x = 137,983,551.26/12,831.58
  6. Step 6: Final answer
    x = 10,753.43

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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.