Home / 8,990.38-13,487.46-3,066.81

Finding the Fourth Proportional to 8,990.38, 13,487.46 and 3,066.81

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Solution

The fourth proportional to 8,990.38, 13,487.46 and 3,066.81 is: 4,600.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.38 : 13,487.46 = 3,066.81 : x
  2. Step 2: Convert to fraction form
    8,990.38/13,487.46 = 3,066.81/x
  3. Step 3: Cross multiply
    8,990.38x = 13,487.46 × 3,066.81
  4. Step 4: Simplify right side
    8,990.38x = 41,363,477.20
  5. Step 5: Solve for x
    x = 41,363,477.20/8,990.38
  6. Step 6: Final answer
    x = 4,600.86

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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.