Home / 13,636.85-20,458.96-4,872.47

Finding the Fourth Proportional to 13,636.85, 20,458.96 and 4,872.47

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Solution

The fourth proportional to 13,636.85, 20,458.96 and 4,872.47 is: 7,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.85 : 20,458.96 = 4,872.47 : x
  2. Step 2: Convert to fraction form
    13,636.85/20,458.96 = 4,872.47/x
  3. Step 3: Cross multiply
    13,636.85x = 20,458.96 × 4,872.47
  4. Step 4: Simplify right side
    13,636.85x = 99,685,554.36
  5. Step 5: Solve for x
    x = 99,685,554.36/13,636.85
  6. Step 6: Final answer
    x = 7,310.02

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1.5x scale

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.