Home / 9,145.05-13,719.08-3,220.41

Finding the Fourth Proportional to 9,145.05, 13,719.08 and 3,220.41

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Solution

The fourth proportional to 9,145.05, 13,719.08 and 3,220.41 is: 4,831.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.05 : 13,719.08 = 3,220.41 : x
  2. Step 2: Convert to fraction form
    9,145.05/13,719.08 = 3,220.41/x
  3. Step 3: Cross multiply
    9,145.05x = 13,719.08 × 3,220.41
  4. Step 4: Simplify right side
    9,145.05x = 44,181,046.32
  5. Step 5: Solve for x
    x = 44,181,046.32/9,145.05
  6. Step 6: Final answer
    x = 4,831.14

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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.