Home / 12,120.64-18,184.24-4,330.08

Finding the Fourth Proportional to 12,120.64, 18,184.24 and 4,330.08

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Solution

The fourth proportional to 12,120.64, 18,184.24 and 4,330.08 is: 6,496.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120.64 : 18,184.24 = 4,330.08 : x
  2. Step 2: Convert to fraction form
    12,120.64/18,184.24 = 4,330.08/x
  3. Step 3: Cross multiply
    12,120.64x = 18,184.24 × 4,330.08
  4. Step 4: Simplify right side
    12,120.64x = 78,739,213.94
  5. Step 5: Solve for x
    x = 78,739,213.94/12,120.64
  6. Step 6: Final answer
    x = 6,496.29

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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.