Home / 8,863.21-13,290.81-2,621.08

Finding the Fourth Proportional to 8,863.21, 13,290.81 and 2,621.08

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Solution

The fourth proportional to 8,863.21, 13,290.81 and 2,621.08 is: 3,930.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.21 : 13,290.81 = 2,621.08 : x
  2. Step 2: Convert to fraction form
    8,863.21/13,290.81 = 2,621.08/x
  3. Step 3: Cross multiply
    8,863.21x = 13,290.81 × 2,621.08
  4. Step 4: Simplify right side
    8,863.21x = 34,836,276.27
  5. Step 5: Solve for x
    x = 34,836,276.27/8,863.21
  6. Step 6: Final answer
    x = 3,930.44

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1.5x scale

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.