Home / 13,855.62-19,120.68-7,567.95

Finding the Fourth Proportional to 13,855.62, 19,120.68 and 7,567.95

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Solution

The fourth proportional to 13,855.62, 19,120.68 and 7,567.95 is: 10,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.62 : 19,120.68 = 7,567.95 : x
  2. Step 2: Convert to fraction form
    13,855.62/19,120.68 = 7,567.95/x
  3. Step 3: Cross multiply
    13,855.62x = 19,120.68 × 7,567.95
  4. Step 4: Simplify right side
    13,855.62x = 144,704,350.21
  5. Step 5: Solve for x
    x = 144,704,350.21/13,855.62
  6. Step 6: Final answer
    x = 10,443.73

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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.