Home / 13,486.37-20,238.66-4,721.36

Finding the Fourth Proportional to 13,486.37, 20,238.66 and 4,721.36

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Solution

The fourth proportional to 13,486.37, 20,238.66 and 4,721.36 is: 7,085.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.37 : 20,238.66 = 4,721.36 : x
  2. Step 2: Convert to fraction form
    13,486.37/20,238.66 = 4,721.36/x
  3. Step 3: Cross multiply
    13,486.37x = 20,238.66 × 4,721.36
  4. Step 4: Simplify right side
    13,486.37x = 95,553,898.58
  5. Step 5: Solve for x
    x = 95,553,898.58/13,486.37
  6. Step 6: Final answer
    x = 7,085.22

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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.