Home / 13,756.83-20,643.45-4,992.43

Finding the Fourth Proportional to 13,756.83, 20,643.45 and 4,992.43

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Solution

The fourth proportional to 13,756.83, 20,643.45 and 4,992.43 is: 7,491.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.83 : 20,643.45 = 4,992.43 : x
  2. Step 2: Convert to fraction form
    13,756.83/20,643.45 = 4,992.43/x
  3. Step 3: Cross multiply
    13,756.83x = 20,643.45 × 4,992.43
  4. Step 4: Simplify right side
    13,756.83x = 103,060,995.53
  5. Step 5: Solve for x
    x = 103,060,995.53/13,756.83
  6. Step 6: Final answer
    x = 7,491.62

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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.