Home / 12,226.20-18,339.30-7,848.60

Finding the Fourth Proportional to 12,226.20, 18,339.30 and 7,848.60

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Solution

The fourth proportional to 12,226.20, 18,339.30 and 7,848.60 is: 11,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.20 : 18,339.30 = 7,848.60 : x
  2. Step 2: Convert to fraction form
    12,226.20/18,339.30 = 7,848.60/x
  3. Step 3: Cross multiply
    12,226.20x = 18,339.30 × 7,848.60
  4. Step 4: Simplify right side
    12,226.20x = 143,937,829.98
  5. Step 5: Solve for x
    x = 143,937,829.98/12,226.20
  6. Step 6: Final answer
    x = 11,772.90

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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.