Home / 8,418.90-11,614.35-5,900.09

Finding the Fourth Proportional to 8,418.90, 11,614.35 and 5,900.09

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Solution

The fourth proportional to 8,418.90, 11,614.35 and 5,900.09 is: 8,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.90 : 11,614.35 = 5,900.09 : x
  2. Step 2: Convert to fraction form
    8,418.90/11,614.35 = 5,900.09/x
  3. Step 3: Cross multiply
    8,418.90x = 11,614.35 × 5,900.09
  4. Step 4: Simplify right side
    8,418.90x = 68,525,710.29
  5. Step 5: Solve for x
    x = 68,525,710.29/8,418.90
  6. Step 6: Final answer
    x = 8,139.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.