Home / 12,197.79-16,831.13-6,892.56

Finding the Fourth Proportional to 12,197.79, 16,831.13 and 6,892.56

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Solution

The fourth proportional to 12,197.79, 16,831.13 and 6,892.56 is: 9,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197.79 : 16,831.13 = 6,892.56 : x
  2. Step 2: Convert to fraction form
    12,197.79/16,831.13 = 6,892.56/x
  3. Step 3: Cross multiply
    12,197.79x = 16,831.13 × 6,892.56
  4. Step 4: Simplify right side
    12,197.79x = 116,009,538.93
  5. Step 5: Solve for x
    x = 116,009,538.93/12,197.79
  6. Step 6: Final answer
    x = 9,510.70

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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.