Home / 8,559.05-12,840.62-2,715.66

Finding the Fourth Proportional to 8,559.05, 12,840.62 and 2,715.66

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Solution

The fourth proportional to 8,559.05, 12,840.62 and 2,715.66 is: 4,074.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.05 : 12,840.62 = 2,715.66 : x
  2. Step 2: Convert to fraction form
    8,559.05/12,840.62 = 2,715.66/x
  3. Step 3: Cross multiply
    8,559.05x = 12,840.62 × 2,715.66
  4. Step 4: Simplify right side
    8,559.05x = 34,870,744.53
  5. Step 5: Solve for x
    x = 34,870,744.53/8,559.05
  6. Step 6: Final answer
    x = 4,074.14

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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.