Home / 9,890.20-14,831.70-3,964.60

Finding the Fourth Proportional to 9,890.20, 14,831.70 and 3,964.60

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Solution

The fourth proportional to 9,890.20, 14,831.70 and 3,964.60 is: 5,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.20 : 14,831.70 = 3,964.60 : x
  2. Step 2: Convert to fraction form
    9,890.20/14,831.70 = 3,964.60/x
  3. Step 3: Cross multiply
    9,890.20x = 14,831.70 × 3,964.60
  4. Step 4: Simplify right side
    9,890.20x = 58,801,757.82
  5. Step 5: Solve for x
    x = 58,801,757.82/9,890.20
  6. Step 6: Final answer
    x = 5,945.46

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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.