Home / 13,390.09-20,086.16-4,505.46

Finding the Fourth Proportional to 13,390.09, 20,086.16 and 4,505.46

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Solution

The fourth proportional to 13,390.09, 20,086.16 and 4,505.46 is: 6,758.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.09 : 20,086.16 = 4,505.46 : x
  2. Step 2: Convert to fraction form
    13,390.09/20,086.16 = 4,505.46/x
  3. Step 3: Cross multiply
    13,390.09x = 20,086.16 × 4,505.46
  4. Step 4: Simplify right side
    13,390.09x = 90,497,390.43
  5. Step 5: Solve for x
    x = 90,497,390.43/13,390.09
  6. Step 6: Final answer
    x = 6,758.53

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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.