Home / 8,921.13-13,367.80-3,371.45

Finding the Fourth Proportional to 8,921.13, 13,367.80 and 3,371.45

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Solution

The fourth proportional to 8,921.13, 13,367.80 and 3,371.45 is: 5,051.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.13 : 13,367.80 = 3,371.45 : x
  2. Step 2: Convert to fraction form
    8,921.13/13,367.80 = 3,371.45/x
  3. Step 3: Cross multiply
    8,921.13x = 13,367.80 × 3,371.45
  4. Step 4: Simplify right side
    8,921.13x = 45,068,856.81
  5. Step 5: Solve for x
    x = 45,068,856.81/8,921.13
  6. Step 6: Final answer
    x = 5,051.92

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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.