Home / 10,405.29-15,600.33-3,831.60

Finding the Fourth Proportional to 10,405.29, 15,600.33 and 3,831.60

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Solution

The fourth proportional to 10,405.29, 15,600.33 and 3,831.60 is: 5,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.29 : 15,600.33 = 3,831.60 : x
  2. Step 2: Convert to fraction form
    10,405.29/15,600.33 = 3,831.60/x
  3. Step 3: Cross multiply
    10,405.29x = 15,600.33 × 3,831.60
  4. Step 4: Simplify right side
    10,405.29x = 59,774,224.43
  5. Step 5: Solve for x
    x = 59,774,224.43/10,405.29
  6. Step 6: Final answer
    x = 5,744.60

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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.