Home / 8,717.64-13,079.34-2,878.26

Finding the Fourth Proportional to 8,717.64, 13,079.34 and 2,878.26

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Solution

The fourth proportional to 8,717.64, 13,079.34 and 2,878.26 is: 4,318.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.64 : 13,079.34 = 2,878.26 : x
  2. Step 2: Convert to fraction form
    8,717.64/13,079.34 = 2,878.26/x
  3. Step 3: Cross multiply
    8,717.64x = 13,079.34 × 2,878.26
  4. Step 4: Simplify right side
    8,717.64x = 37,645,741.15
  5. Step 5: Solve for x
    x = 37,645,741.15/8,717.64
  6. Step 6: Final answer
    x = 4,318.34

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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.