Home / 13,743.51-20,612.93-3,880.49

Finding the Fourth Proportional to 13,743.51, 20,612.93 and 3,880.49

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Solution

The fourth proportional to 13,743.51, 20,612.93 and 3,880.49 is: 5,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.51 : 20,612.93 = 3,880.49 : x
  2. Step 2: Convert to fraction form
    13,743.51/20,612.93 = 3,880.49/x
  3. Step 3: Cross multiply
    13,743.51x = 20,612.93 × 3,880.49
  4. Step 4: Simplify right side
    13,743.51x = 79,988,146.27
  5. Step 5: Solve for x
    x = 79,988,146.27/13,743.51
  6. Step 6: Final answer
    x = 5,820.07

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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.