Home / 8,738.39-13,103.56-2,814.18

Finding the Fourth Proportional to 8,738.39, 13,103.56 and 2,814.18

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Solution

The fourth proportional to 8,738.39, 13,103.56 and 2,814.18 is: 4,219.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.39 : 13,103.56 = 2,814.18 : x
  2. Step 2: Convert to fraction form
    8,738.39/13,103.56 = 2,814.18/x
  3. Step 3: Cross multiply
    8,738.39x = 13,103.56 × 2,814.18
  4. Step 4: Simplify right side
    8,738.39x = 36,875,782.18
  5. Step 5: Solve for x
    x = 36,875,782.18/8,738.39
  6. Step 6: Final answer
    x = 4,219.97

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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.