Home / 13,637.22-20,457.09-5,317.89

Finding the Fourth Proportional to 13,637.22, 20,457.09 and 5,317.89

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Solution

The fourth proportional to 13,637.22, 20,457.09 and 5,317.89 is: 7,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.22 : 20,457.09 = 5,317.89 : x
  2. Step 2: Convert to fraction form
    13,637.22/20,457.09 = 5,317.89/x
  3. Step 3: Cross multiply
    13,637.22x = 20,457.09 × 5,317.89
  4. Step 4: Simplify right side
    13,637.22x = 108,788,554.34
  5. Step 5: Solve for x
    x = 108,788,554.34/13,637.22
  6. Step 6: Final answer
    x = 7,977.33

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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.