Home / 13,656.48-20,489.63-4,773.11

Finding the Fourth Proportional to 13,656.48, 20,489.63 and 4,773.11

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Solution

The fourth proportional to 13,656.48, 20,489.63 and 4,773.11 is: 7,161.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.48 : 20,489.63 = 4,773.11 : x
  2. Step 2: Convert to fraction form
    13,656.48/20,489.63 = 4,773.11/x
  3. Step 3: Cross multiply
    13,656.48x = 20,489.63 × 4,773.11
  4. Step 4: Simplify right side
    13,656.48x = 97,799,131.54
  5. Step 5: Solve for x
    x = 97,799,131.54/13,656.48
  6. Step 6: Final answer
    x = 7,161.37

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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.