Home / 13,757.11-20,643.86-4,992.71

Finding the Fourth Proportional to 13,757.11, 20,643.86 and 4,992.71

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Solution

The fourth proportional to 13,757.11, 20,643.86 and 4,992.71 is: 7,492.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.11 : 20,643.86 = 4,992.71 : x
  2. Step 2: Convert to fraction form
    13,757.11/20,643.86 = 4,992.71/x
  3. Step 3: Cross multiply
    13,757.11x = 20,643.86 × 4,992.71
  4. Step 4: Simplify right side
    13,757.11x = 103,068,715.52
  5. Step 5: Solve for x
    x = 103,068,715.52/13,757.11
  6. Step 6: Final answer
    x = 7,492.03

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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.