Home / 13,636.35-20,458.71-11,285.64

Finding the Fourth Proportional to 13,636.35, 20,458.71 and 11,285.64

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Solution

The fourth proportional to 13,636.35, 20,458.71 and 11,285.64 is: 16,931.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.35 : 20,458.71 = 11,285.64 : x
  2. Step 2: Convert to fraction form
    13,636.35/20,458.71 = 11,285.64/x
  3. Step 3: Cross multiply
    13,636.35x = 20,458.71 × 11,285.64
  4. Step 4: Simplify right side
    13,636.35x = 230,889,635.92
  5. Step 5: Solve for x
    x = 230,889,635.92/13,636.35
  6. Step 6: Final answer
    x = 16,931.92

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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.