Home / 13,639.58-20,452.91-4,751.81

Finding the Fourth Proportional to 13,639.58, 20,452.91 and 4,751.81

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Solution

The fourth proportional to 13,639.58, 20,452.91 and 4,751.81 is: 7,125.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639.58 : 20,452.91 = 4,751.81 : x
  2. Step 2: Convert to fraction form
    13,639.58/20,452.91 = 4,751.81/x
  3. Step 3: Cross multiply
    13,639.58x = 20,452.91 × 4,751.81
  4. Step 4: Simplify right side
    13,639.58x = 97,188,216.24
  5. Step 5: Solve for x
    x = 97,188,216.24/13,639.58
  6. Step 6: Final answer
    x = 7,125.46

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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.