Home / 13,747.16-20,606.89-5,423.95

Finding the Fourth Proportional to 13,747.16, 20,606.89 and 5,423.95

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Solution

The fourth proportional to 13,747.16, 20,606.89 and 5,423.95 is: 8,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.16 : 20,606.89 = 5,423.95 : x
  2. Step 2: Convert to fraction form
    13,747.16/20,606.89 = 5,423.95/x
  3. Step 3: Cross multiply
    13,747.16x = 20,606.89 × 5,423.95
  4. Step 4: Simplify right side
    13,747.16x = 111,770,741.02
  5. Step 5: Solve for x
    x = 111,770,741.02/13,747.16
  6. Step 6: Final answer
    x = 8,130.46

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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.