Home / 8,681.26-13,021.74-2,107.20

Finding the Fourth Proportional to 8,681.26, 13,021.74 and 2,107.20

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Solution

The fourth proportional to 8,681.26, 13,021.74 and 2,107.20 is: 3,160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.26 : 13,021.74 = 2,107.20 : x
  2. Step 2: Convert to fraction form
    8,681.26/13,021.74 = 2,107.20/x
  3. Step 3: Cross multiply
    8,681.26x = 13,021.74 × 2,107.20
  4. Step 4: Simplify right side
    8,681.26x = 27,439,410.53
  5. Step 5: Solve for x
    x = 27,439,410.53/8,681.26
  6. Step 6: Final answer
    x = 3,160.76

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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.