Home / 18,421.62-27,625.59-12,530.54

Finding the Fourth Proportional to 18,421.62, 27,625.59 and 12,530.54

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Solution

The fourth proportional to 18,421.62, 27,625.59 and 12,530.54 is: 18,791.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.62 : 27,625.59 = 12,530.54 : x
  2. Step 2: Convert to fraction form
    18,421.62/27,625.59 = 12,530.54/x
  3. Step 3: Cross multiply
    18,421.62x = 27,625.59 × 12,530.54
  4. Step 4: Simplify right side
    18,421.62x = 346,163,560.52
  5. Step 5: Solve for x
    x = 346,163,560.52/18,421.62
  6. Step 6: Final answer
    x = 18,791.16

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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.