Home / 8,274.36-12,418.83-6,976.74

Finding the Fourth Proportional to 8,274.36, 12,418.83 and 6,976.74

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Solution

The fourth proportional to 8,274.36, 12,418.83 and 6,976.74 is: 10,471.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,274.36 : 12,418.83 = 6,976.74 : x
  2. Step 2: Convert to fraction form
    8,274.36/12,418.83 = 6,976.74/x
  3. Step 3: Cross multiply
    8,274.36x = 12,418.83 × 6,976.74
  4. Step 4: Simplify right side
    8,274.36x = 86,642,948.01
  5. Step 5: Solve for x
    x = 86,642,948.01/8,274.36
  6. Step 6: Final answer
    x = 10,471.26

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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.