Home / 13,233.20-19,831.80-6,663.92

Finding the Fourth Proportional to 13,233.20, 19,831.80 and 6,663.92

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Solution

The fourth proportional to 13,233.20, 19,831.80 and 6,663.92 is: 9,986.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,233.20 : 19,831.80 = 6,663.92 : x
  2. Step 2: Convert to fraction form
    13,233.20/19,831.80 = 6,663.92/x
  3. Step 3: Cross multiply
    13,233.20x = 19,831.80 × 6,663.92
  4. Step 4: Simplify right side
    13,233.20x = 132,157,528.66
  5. Step 5: Solve for x
    x = 132,157,528.66/13,233.20
  6. Step 6: Final answer
    x = 9,986.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.