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Finding the Fourth Proportional to 8,418.58, 12,630.58 and 4,036.34

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Solution

The fourth proportional to 8,418.58, 12,630.58 and 4,036.34 is: 6,055.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.58 : 12,630.58 = 4,036.34 : x
  2. Step 2: Convert to fraction form
    8,418.58/12,630.58 = 4,036.34/x
  3. Step 3: Cross multiply
    8,418.58x = 12,630.58 × 4,036.34
  4. Step 4: Simplify right side
    8,418.58x = 50,981,315.28
  5. Step 5: Solve for x
    x = 50,981,315.28/8,418.58
  6. Step 6: Final answer
    x = 6,055.81

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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.