Home / 11,890.13-17,837.90-6,340.55

Finding the Fourth Proportional to 11,890.13, 17,837.90 and 6,340.55

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Solution

The fourth proportional to 11,890.13, 17,837.90 and 6,340.55 is: 9,512.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.13 : 17,837.90 = 6,340.55 : x
  2. Step 2: Convert to fraction form
    11,890.13/17,837.90 = 6,340.55/x
  3. Step 3: Cross multiply
    11,890.13x = 17,837.90 × 6,340.55
  4. Step 4: Simplify right side
    11,890.13x = 113,102,065.14
  5. Step 5: Solve for x
    x = 113,102,065.14/11,890.13
  6. Step 6: Final answer
    x = 9,512.26

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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.