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Finding the Fourth Proportional to 8,143.80, 11,238.93 and 4,606.80

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Solution

The fourth proportional to 8,143.80, 11,238.93 and 4,606.80 is: 6,357.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.80 : 11,238.93 = 4,606.80 : x
  2. Step 2: Convert to fraction form
    8,143.80/11,238.93 = 4,606.80/x
  3. Step 3: Cross multiply
    8,143.80x = 11,238.93 × 4,606.80
  4. Step 4: Simplify right side
    8,143.80x = 51,775,502.72
  5. Step 5: Solve for x
    x = 51,775,502.72/8,143.80
  6. Step 6: Final answer
    x = 6,357.66

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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.