Home / 7,821.96-11,723.10-5,589.18

Finding the Fourth Proportional to 7,821.96, 11,723.10 and 5,589.18

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Solution

The fourth proportional to 7,821.96, 11,723.10 and 5,589.18 is: 8,376.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.96 : 11,723.10 = 5,589.18 : x
  2. Step 2: Convert to fraction form
    7,821.96/11,723.10 = 5,589.18/x
  3. Step 3: Cross multiply
    7,821.96x = 11,723.10 × 5,589.18
  4. Step 4: Simplify right side
    7,821.96x = 65,522,516.06
  5. Step 5: Solve for x
    x = 65,522,516.06/7,821.96
  6. Step 6: Final answer
    x = 8,376.74

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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.