Home / 11,860.35-17,790.83-5,618.90

Finding the Fourth Proportional to 11,860.35, 17,790.83 and 5,618.90

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Solution

The fourth proportional to 11,860.35, 17,790.83 and 5,618.90 is: 8,428.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.35 : 17,790.83 = 5,618.90 : x
  2. Step 2: Convert to fraction form
    11,860.35/17,790.83 = 5,618.90/x
  3. Step 3: Cross multiply
    11,860.35x = 17,790.83 × 5,618.90
  4. Step 4: Simplify right side
    11,860.35x = 99,964,894.69
  5. Step 5: Solve for x
    x = 99,964,894.69/11,860.35
  6. Step 6: Final answer
    x = 8,428.49

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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.