Home / 13,491.12-18,616.68-7,522.32

Finding the Fourth Proportional to 13,491.12, 18,616.68 and 7,522.32

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Solution

The fourth proportional to 13,491.12, 18,616.68 and 7,522.32 is: 10,380.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.12 : 18,616.68 = 7,522.32 : x
  2. Step 2: Convert to fraction form
    13,491.12/18,616.68 = 7,522.32/x
  3. Step 3: Cross multiply
    13,491.12x = 18,616.68 × 7,522.32
  4. Step 4: Simplify right side
    13,491.12x = 140,040,624.30
  5. Step 5: Solve for x
    x = 140,040,624.30/13,491.12
  6. Step 6: Final answer
    x = 10,380.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.