Home / 12,449.18-18,674.61-4,129.35

Finding the Fourth Proportional to 12,449.18, 18,674.61 and 4,129.35

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Solution

The fourth proportional to 12,449.18, 18,674.61 and 4,129.35 is: 6,194.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.18 : 18,674.61 = 4,129.35 : x
  2. Step 2: Convert to fraction form
    12,449.18/18,674.61 = 4,129.35/x
  3. Step 3: Cross multiply
    12,449.18x = 18,674.61 × 4,129.35
  4. Step 4: Simplify right side
    12,449.18x = 77,114,000.80
  5. Step 5: Solve for x
    x = 77,114,000.80/12,449.18
  6. Step 6: Final answer
    x = 6,194.31

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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.