Home / 12,150.30-18,226.20-3,830.60

Finding the Fourth Proportional to 12,150.30, 18,226.20 and 3,830.60

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Solution

The fourth proportional to 12,150.30, 18,226.20 and 3,830.60 is: 5,746.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.30 : 18,226.20 = 3,830.60 : x
  2. Step 2: Convert to fraction form
    12,150.30/18,226.20 = 3,830.60/x
  3. Step 3: Cross multiply
    12,150.30x = 18,226.20 × 3,830.60
  4. Step 4: Simplify right side
    12,150.30x = 69,817,281.72
  5. Step 5: Solve for x
    x = 69,817,281.72/12,150.30
  6. Step 6: Final answer
    x = 5,746.14

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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.