Home / 13,664.65-20,503.36-5,342.51

Finding the Fourth Proportional to 13,664.65, 20,503.36 and 5,342.51

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Solution

The fourth proportional to 13,664.65, 20,503.36 and 5,342.51 is: 8,016.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.65 : 20,503.36 = 5,342.51 : x
  2. Step 2: Convert to fraction form
    13,664.65/20,503.36 = 5,342.51/x
  3. Step 3: Cross multiply
    13,664.65x = 20,503.36 × 5,342.51
  4. Step 4: Simplify right side
    13,664.65x = 109,539,405.83
  5. Step 5: Solve for x
    x = 109,539,405.83/13,664.65
  6. Step 6: Final answer
    x = 8,016.26

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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.