Home / 13,663.63-20,503.41-5,765.65

Finding the Fourth Proportional to 13,663.63, 20,503.41 and 5,765.65

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Solution

The fourth proportional to 13,663.63, 20,503.41 and 5,765.65 is: 8,651.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.63 : 20,503.41 = 5,765.65 : x
  2. Step 2: Convert to fraction form
    13,663.63/20,503.41 = 5,765.65/x
  3. Step 3: Cross multiply
    13,663.63x = 20,503.41 × 5,765.65
  4. Step 4: Simplify right side
    13,663.63x = 118,215,485.87
  5. Step 5: Solve for x
    x = 118,215,485.87/13,663.63
  6. Step 6: Final answer
    x = 8,651.84

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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.