Home / 13,675.07-20,502.32-5,786.81

Finding the Fourth Proportional to 13,675.07, 20,502.32 and 5,786.81

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Solution

The fourth proportional to 13,675.07, 20,502.32 and 5,786.81 is: 8,675.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.07 : 20,502.32 = 5,786.81 : x
  2. Step 2: Convert to fraction form
    13,675.07/20,502.32 = 5,786.81/x
  3. Step 3: Cross multiply
    13,675.07x = 20,502.32 × 5,786.81
  4. Step 4: Simplify right side
    13,675.07x = 118,642,898.95
  5. Step 5: Solve for x
    x = 118,642,898.95/13,675.07
  6. Step 6: Final answer
    x = 8,675.86

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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.