Home / 11,831.30-16,326.66-6,453.60

Finding the Fourth Proportional to 11,831.30, 16,326.66 and 6,453.60

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Solution

The fourth proportional to 11,831.30, 16,326.66 and 6,453.60 is: 8,905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,831.30 : 16,326.66 = 6,453.60 : x
  2. Step 2: Convert to fraction form
    11,831.30/16,326.66 = 6,453.60/x
  3. Step 3: Cross multiply
    11,831.30x = 16,326.66 × 6,453.60
  4. Step 4: Simplify right side
    11,831.30x = 105,365,700.71
  5. Step 5: Solve for x
    x = 105,365,700.71/11,831.30
  6. Step 6: Final answer
    x = 8,905.68

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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.