Home / 18,675.62-28,012.99-4,635.69

Finding the Fourth Proportional to 18,675.62, 28,012.99 and 4,635.69

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Solution

The fourth proportional to 18,675.62, 28,012.99 and 4,635.69 is: 6,953.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.62 : 28,012.99 = 4,635.69 : x
  2. Step 2: Convert to fraction form
    18,675.62/28,012.99 = 4,635.69/x
  3. Step 3: Cross multiply
    18,675.62x = 28,012.99 × 4,635.69
  4. Step 4: Simplify right side
    18,675.62x = 129,859,537.61
  5. Step 5: Solve for x
    x = 129,859,537.61/18,675.62
  6. Step 6: Final answer
    x = 6,953.43

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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.