Home / 8,764.36-13,143.66-2,919.40

Finding the Fourth Proportional to 8,764.36, 13,143.66 and 2,919.40

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Solution

The fourth proportional to 8,764.36, 13,143.66 and 2,919.40 is: 4,378.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.36 : 13,143.66 = 2,919.40 : x
  2. Step 2: Convert to fraction form
    8,764.36/13,143.66 = 2,919.40/x
  3. Step 3: Cross multiply
    8,764.36x = 13,143.66 × 2,919.40
  4. Step 4: Simplify right side
    8,764.36x = 38,371,601.00
  5. Step 5: Solve for x
    x = 38,371,601.00/8,764.36
  6. Step 6: Final answer
    x = 4,378.14

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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.