Home / 8,681.24-13,021.86-2,107.43

Finding the Fourth Proportional to 8,681.24, 13,021.86 and 2,107.43

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Solution

The fourth proportional to 8,681.24, 13,021.86 and 2,107.43 is: 3,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.24 : 13,021.86 = 2,107.43 : x
  2. Step 2: Convert to fraction form
    8,681.24/13,021.86 = 2,107.43/x
  3. Step 3: Cross multiply
    8,681.24x = 13,021.86 × 2,107.43
  4. Step 4: Simplify right side
    8,681.24x = 27,442,658.42
  5. Step 5: Solve for x
    x = 27,442,658.42/8,681.24
  6. Step 6: Final answer
    x = 3,161.15

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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.