Home / 12,197.18-16,831.30-6,891.66

Finding the Fourth Proportional to 12,197.18, 16,831.30 and 6,891.66

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Solution

The fourth proportional to 12,197.18, 16,831.30 and 6,891.66 is: 9,510.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197.18 : 16,831.30 = 6,891.66 : x
  2. Step 2: Convert to fraction form
    12,197.18/16,831.30 = 6,891.66/x
  3. Step 3: Cross multiply
    12,197.18x = 16,831.30 × 6,891.66
  4. Step 4: Simplify right side
    12,197.18x = 115,995,596.96
  5. Step 5: Solve for x
    x = 115,995,596.96/12,197.18
  6. Step 6: Final answer
    x = 9,510.03

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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.