Home / 13,151.90-19,722.21-4,829.18

Finding the Fourth Proportional to 13,151.90, 19,722.21 and 4,829.18

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Solution

The fourth proportional to 13,151.90, 19,722.21 and 4,829.18 is: 7,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.90 : 19,722.21 = 4,829.18 : x
  2. Step 2: Convert to fraction form
    13,151.90/19,722.21 = 4,829.18/x
  3. Step 3: Cross multiply
    13,151.90x = 19,722.21 × 4,829.18
  4. Step 4: Simplify right side
    13,151.90x = 95,242,102.09
  5. Step 5: Solve for x
    x = 95,242,102.09/13,151.90
  6. Step 6: Final answer
    x = 7,241.70

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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.