Home / 12,148.82-18,219.14-4,650.62

Finding the Fourth Proportional to 12,148.82, 18,219.14 and 4,650.62

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Solution

The fourth proportional to 12,148.82, 18,219.14 and 4,650.62 is: 6,974.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.82 : 18,219.14 = 4,650.62 : x
  2. Step 2: Convert to fraction form
    12,148.82/18,219.14 = 4,650.62/x
  3. Step 3: Cross multiply
    12,148.82x = 18,219.14 × 4,650.62
  4. Step 4: Simplify right side
    12,148.82x = 84,730,296.87
  5. Step 5: Solve for x
    x = 84,730,296.87/12,148.82
  6. Step 6: Final answer
    x = 6,974.36

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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.