Home / 13,538.88-20,307.78-4,773.87

Finding the Fourth Proportional to 13,538.88, 20,307.78 and 4,773.87

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Solution

The fourth proportional to 13,538.88, 20,307.78 and 4,773.87 is: 7,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.88 : 20,307.78 = 4,773.87 : x
  2. Step 2: Convert to fraction form
    13,538.88/20,307.78 = 4,773.87/x
  3. Step 3: Cross multiply
    13,538.88x = 20,307.78 × 4,773.87
  4. Step 4: Simplify right side
    13,538.88x = 96,946,701.71
  5. Step 5: Solve for x
    x = 96,946,701.71/13,538.88
  6. Step 6: Final answer
    x = 7,160.61

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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.