Home / 8,690.18-13,028.79-5,226.62

Finding the Fourth Proportional to 8,690.18, 13,028.79 and 5,226.62

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Solution

The fourth proportional to 8,690.18, 13,028.79 and 5,226.62 is: 7,836.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.18 : 13,028.79 = 5,226.62 : x
  2. Step 2: Convert to fraction form
    8,690.18/13,028.79 = 5,226.62/x
  3. Step 3: Cross multiply
    8,690.18x = 13,028.79 × 5,226.62
  4. Step 4: Simplify right side
    8,690.18x = 68,096,534.39
  5. Step 5: Solve for x
    x = 68,096,534.39/8,690.18
  6. Step 6: Final answer
    x = 7,836.03

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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.