Home / 13,248.21-19,871.71-3,887.85

Finding the Fourth Proportional to 13,248.21, 19,871.71 and 3,887.85

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Solution

The fourth proportional to 13,248.21, 19,871.71 and 3,887.85 is: 5,831.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.21 : 19,871.71 = 3,887.85 : x
  2. Step 2: Convert to fraction form
    13,248.21/19,871.71 = 3,887.85/x
  3. Step 3: Cross multiply
    13,248.21x = 19,871.71 × 3,887.85
  4. Step 4: Simplify right side
    13,248.21x = 77,258,218.00
  5. Step 5: Solve for x
    x = 77,258,218.00/13,248.21
  6. Step 6: Final answer
    x = 5,831.60

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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.