Home / 13,472.75-20,218.37-4,707.68

Finding the Fourth Proportional to 13,472.75, 20,218.37 and 4,707.68

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Solution

The fourth proportional to 13,472.75, 20,218.37 and 4,707.68 is: 7,064.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.75 : 20,218.37 = 4,707.68 : x
  2. Step 2: Convert to fraction form
    13,472.75/20,218.37 = 4,707.68/x
  3. Step 3: Cross multiply
    13,472.75x = 20,218.37 × 4,707.68
  4. Step 4: Simplify right side
    13,472.75x = 95,181,491.45
  5. Step 5: Solve for x
    x = 95,181,491.45/13,472.75
  6. Step 6: Final answer
    x = 7,064.74

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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.