Home / 8,138.13-11,231.18-4,601.35

Finding the Fourth Proportional to 8,138.13, 11,231.18 and 4,601.35

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Solution

The fourth proportional to 8,138.13, 11,231.18 and 4,601.35 is: 6,350.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.13 : 11,231.18 = 4,601.35 : x
  2. Step 2: Convert to fraction form
    8,138.13/11,231.18 = 4,601.35/x
  3. Step 3: Cross multiply
    8,138.13x = 11,231.18 × 4,601.35
  4. Step 4: Simplify right side
    8,138.13x = 51,678,590.09
  5. Step 5: Solve for x
    x = 51,678,590.09/8,138.13
  6. Step 6: Final answer
    x = 6,350.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.