Home / 6,990.06-10,489.96-4,518.76

Finding the Fourth Proportional to 6,990.06, 10,489.96 and 4,518.76

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Solution

The fourth proportional to 6,990.06, 10,489.96 and 4,518.76 is: 6,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.06 : 10,489.96 = 4,518.76 : x
  2. Step 2: Convert to fraction form
    6,990.06/10,489.96 = 4,518.76/x
  3. Step 3: Cross multiply
    6,990.06x = 10,489.96 × 4,518.76
  4. Step 4: Simplify right side
    6,990.06x = 47,401,611.65
  5. Step 5: Solve for x
    x = 47,401,611.65/6,990.06
  6. Step 6: Final answer
    x = 6,781.29

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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.