Home / 13,739.88-20,607.43-6,343.71

Finding the Fourth Proportional to 13,739.88, 20,607.43 and 6,343.71

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Solution

The fourth proportional to 13,739.88, 20,607.43 and 6,343.71 is: 9,514.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.88 : 20,607.43 = 6,343.71 : x
  2. Step 2: Convert to fraction form
    13,739.88/20,607.43 = 6,343.71/x
  3. Step 3: Cross multiply
    13,739.88x = 20,607.43 × 6,343.71
  4. Step 4: Simplify right side
    13,739.88x = 130,727,559.77
  5. Step 5: Solve for x
    x = 130,727,559.77/13,739.88
  6. Step 6: Final answer
    x = 9,514.46

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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.