Home / 8,990.03-13,486.97-3,146.83

Finding the Fourth Proportional to 8,990.03, 13,486.97 and 3,146.83

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Solution

The fourth proportional to 8,990.03, 13,486.97 and 3,146.83 is: 4,720.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.03 : 13,486.97 = 3,146.83 : x
  2. Step 2: Convert to fraction form
    8,990.03/13,486.97 = 3,146.83/x
  3. Step 3: Cross multiply
    8,990.03x = 13,486.97 × 3,146.83
  4. Step 4: Simplify right side
    8,990.03x = 42,441,201.81
  5. Step 5: Solve for x
    x = 42,441,201.81/8,990.03
  6. Step 6: Final answer
    x = 4,720.92

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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.