Home / 12,192.08-18,289.26-3,426.98

Finding the Fourth Proportional to 12,192.08, 18,289.26 and 3,426.98

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Solution

The fourth proportional to 12,192.08, 18,289.26 and 3,426.98 is: 5,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.08 : 18,289.26 = 3,426.98 : x
  2. Step 2: Convert to fraction form
    12,192.08/18,289.26 = 3,426.98/x
  3. Step 3: Cross multiply
    12,192.08x = 18,289.26 × 3,426.98
  4. Step 4: Simplify right side
    12,192.08x = 62,676,836.79
  5. Step 5: Solve for x
    x = 62,676,836.79/12,192.08
  6. Step 6: Final answer
    x = 5,140.79

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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.