Home / 8,490.72-11,717.04-4,713.81

Finding the Fourth Proportional to 8,490.72, 11,717.04 and 4,713.81

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Solution

The fourth proportional to 8,490.72, 11,717.04 and 4,713.81 is: 6,504.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.72 : 11,717.04 = 4,713.81 : x
  2. Step 2: Convert to fraction form
    8,490.72/11,717.04 = 4,713.81/x
  3. Step 3: Cross multiply
    8,490.72x = 11,717.04 × 4,713.81
  4. Step 4: Simplify right side
    8,490.72x = 55,231,883.91
  5. Step 5: Solve for x
    x = 55,231,883.91/8,490.72
  6. Step 6: Final answer
    x = 6,504.97

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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.