Home / 12,219.30-18,296.55-9,627.30

Finding the Fourth Proportional to 12,219.30, 18,296.55 and 9,627.30

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Solution

The fourth proportional to 12,219.30, 18,296.55 and 9,627.30 is: 14,415.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.30 : 18,296.55 = 9,627.30 : x
  2. Step 2: Convert to fraction form
    12,219.30/18,296.55 = 9,627.30/x
  3. Step 3: Cross multiply
    12,219.30x = 18,296.55 × 9,627.30
  4. Step 4: Simplify right side
    12,219.30x = 176,146,375.82
  5. Step 5: Solve for x
    x = 176,146,375.82/12,219.30
  6. Step 6: Final answer
    x = 14,415.42

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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.