Home / 13,756.85-20,636.64-4,992.45

Finding the Fourth Proportional to 13,756.85, 20,636.64 and 4,992.45

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Solution

The fourth proportional to 13,756.85, 20,636.64 and 4,992.45 is: 7,489.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.85 : 20,636.64 = 4,992.45 : x
  2. Step 2: Convert to fraction form
    13,756.85/20,636.64 = 4,992.45/x
  3. Step 3: Cross multiply
    13,756.85x = 20,636.64 × 4,992.45
  4. Step 4: Simplify right side
    13,756.85x = 103,027,393.37
  5. Step 5: Solve for x
    x = 103,027,393.37/13,756.85
  6. Step 6: Final answer
    x = 7,489.17

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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.