Home / 8,717.40-13,079.88-3,788.28

Finding the Fourth Proportional to 8,717.40, 13,079.88 and 3,788.28

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Solution

The fourth proportional to 8,717.40, 13,079.88 and 3,788.28 is: 5,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.40 : 13,079.88 = 3,788.28 : x
  2. Step 2: Convert to fraction form
    8,717.40/13,079.88 = 3,788.28/x
  3. Step 3: Cross multiply
    8,717.40x = 13,079.88 × 3,788.28
  4. Step 4: Simplify right side
    8,717.40x = 49,550,247.81
  5. Step 5: Solve for x
    x = 49,550,247.81/8,717.40
  6. Step 6: Final answer
    x = 5,684.06

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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.