Home / 12,274.85-18,412.32-4,879.26

Finding the Fourth Proportional to 12,274.85, 18,412.32 and 4,879.26

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Solution

The fourth proportional to 12,274.85, 18,412.32 and 4,879.26 is: 7,318.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,274.85 : 18,412.32 = 4,879.26 : x
  2. Step 2: Convert to fraction form
    12,274.85/18,412.32 = 4,879.26/x
  3. Step 3: Cross multiply
    12,274.85x = 18,412.32 × 4,879.26
  4. Step 4: Simplify right side
    12,274.85x = 89,838,496.48
  5. Step 5: Solve for x
    x = 89,838,496.48/12,274.85
  6. Step 6: Final answer
    x = 7,318.91

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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.