Home / 10,401.12-15,607.85-3,831.92

Finding the Fourth Proportional to 10,401.12, 15,607.85 and 3,831.92

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Solution

The fourth proportional to 10,401.12, 15,607.85 and 3,831.92 is: 5,750.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,401.12 : 15,607.85 = 3,831.92 : x
  2. Step 2: Convert to fraction form
    10,401.12/15,607.85 = 3,831.92/x
  3. Step 3: Cross multiply
    10,401.12x = 15,607.85 × 3,831.92
  4. Step 4: Simplify right side
    10,401.12x = 59,807,935.37
  5. Step 5: Solve for x
    x = 59,807,935.37/10,401.12
  6. Step 6: Final answer
    x = 5,750.14

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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.