Home / 8,756.64-13,137.38-4,863.78

Finding the Fourth Proportional to 8,756.64, 13,137.38 and 4,863.78

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Solution

The fourth proportional to 8,756.64, 13,137.38 and 4,863.78 is: 7,297.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.64 : 13,137.38 = 4,863.78 : x
  2. Step 2: Convert to fraction form
    8,756.64/13,137.38 = 4,863.78/x
  3. Step 3: Cross multiply
    8,756.64x = 13,137.38 × 4,863.78
  4. Step 4: Simplify right side
    8,756.64x = 63,897,326.10
  5. Step 5: Solve for x
    x = 63,897,326.10/8,756.64
  6. Step 6: Final answer
    x = 7,297.01

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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.