Home / 13,926.63-20,890.13-3,538.47

Finding the Fourth Proportional to 13,926.63, 20,890.13 and 3,538.47

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Solution

The fourth proportional to 13,926.63, 20,890.13 and 3,538.47 is: 5,307.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.63 : 20,890.13 = 3,538.47 : x
  2. Step 2: Convert to fraction form
    13,926.63/20,890.13 = 3,538.47/x
  3. Step 3: Cross multiply
    13,926.63x = 20,890.13 × 3,538.47
  4. Step 4: Simplify right side
    13,926.63x = 73,919,080.61
  5. Step 5: Solve for x
    x = 73,919,080.61/13,926.63
  6. Step 6: Final answer
    x = 5,307.75

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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.