Home / 13,678.82-20,518.43-9,028.61

Finding the Fourth Proportional to 13,678.82, 20,518.43 and 9,028.61

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Solution

The fourth proportional to 13,678.82, 20,518.43 and 9,028.61 is: 13,543.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.82 : 20,518.43 = 9,028.61 : x
  2. Step 2: Convert to fraction form
    13,678.82/20,518.43 = 9,028.61/x
  3. Step 3: Cross multiply
    13,678.82x = 20,518.43 × 9,028.61
  4. Step 4: Simplify right side
    13,678.82x = 185,252,754.55
  5. Step 5: Solve for x
    x = 185,252,754.55/13,678.82
  6. Step 6: Final answer
    x = 13,543.04

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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.