Home / 8,968.66-13,434.46-5,259.72

Finding the Fourth Proportional to 8,968.66, 13,434.46 and 5,259.72

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Solution

The fourth proportional to 8,968.66, 13,434.46 and 5,259.72 is: 7,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.66 : 13,434.46 = 5,259.72 : x
  2. Step 2: Convert to fraction form
    8,968.66/13,434.46 = 5,259.72/x
  3. Step 3: Cross multiply
    8,968.66x = 13,434.46 × 5,259.72
  4. Step 4: Simplify right side
    8,968.66x = 70,661,451.22
  5. Step 5: Solve for x
    x = 70,661,451.22/8,968.66
  6. Step 6: Final answer
    x = 7,878.71

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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.