Home / 13,756.74-20,635.59-4,872.99

Finding the Fourth Proportional to 13,756.74, 20,635.59 and 4,872.99

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Solution

The fourth proportional to 13,756.74, 20,635.59 and 4,872.99 is: 7,309.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.74 : 20,635.59 = 4,872.99 : x
  2. Step 2: Convert to fraction form
    13,756.74/20,635.59 = 4,872.99/x
  3. Step 3: Cross multiply
    13,756.74x = 20,635.59 × 4,872.99
  4. Step 4: Simplify right side
    13,756.74x = 100,557,119.37
  5. Step 5: Solve for x
    x = 100,557,119.37/13,756.74
  6. Step 6: Final answer
    x = 7,309.66

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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.