Home / 11,867.56-16,377.98-6,831.68

Finding the Fourth Proportional to 11,867.56, 16,377.98 and 6,831.68

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Solution

The fourth proportional to 11,867.56, 16,377.98 and 6,831.68 is: 9,428.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.56 : 16,377.98 = 6,831.68 : x
  2. Step 2: Convert to fraction form
    11,867.56/16,377.98 = 6,831.68/x
  3. Step 3: Cross multiply
    11,867.56x = 16,377.98 × 6,831.68
  4. Step 4: Simplify right side
    11,867.56x = 111,889,002.36
  5. Step 5: Solve for x
    x = 111,889,002.36/11,867.56
  6. Step 6: Final answer
    x = 9,428.14

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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.