Home / 13,770.51-20,643.26-4,999.22

Finding the Fourth Proportional to 13,770.51, 20,643.26 and 4,999.22

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Solution

The fourth proportional to 13,770.51, 20,643.26 and 4,999.22 is: 7,494.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.51 : 20,643.26 = 4,999.22 : x
  2. Step 2: Convert to fraction form
    13,770.51/20,643.26 = 4,999.22/x
  3. Step 3: Cross multiply
    13,770.51x = 20,643.26 × 4,999.22
  4. Step 4: Simplify right side
    13,770.51x = 103,200,147.46
  5. Step 5: Solve for x
    x = 103,200,147.46/13,770.51
  6. Step 6: Final answer
    x = 7,494.29

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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.