Home / 12,150.08-18,225.24-3,385.64

Finding the Fourth Proportional to 12,150.08, 18,225.24 and 3,385.64

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Solution

The fourth proportional to 12,150.08, 18,225.24 and 3,385.64 is: 5,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.08 : 18,225.24 = 3,385.64 : x
  2. Step 2: Convert to fraction form
    12,150.08/18,225.24 = 3,385.64/x
  3. Step 3: Cross multiply
    12,150.08x = 18,225.24 × 3,385.64
  4. Step 4: Simplify right side
    12,150.08x = 61,704,101.55
  5. Step 5: Solve for x
    x = 61,704,101.55/12,150.08
  6. Step 6: Final answer
    x = 5,078.49

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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.