Home / 13,739.61-20,595.53-5,425.50

Finding the Fourth Proportional to 13,739.61, 20,595.53 and 5,425.50

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Solution

The fourth proportional to 13,739.61, 20,595.53 and 5,425.50 is: 8,132.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.61 : 20,595.53 = 5,425.50 : x
  2. Step 2: Convert to fraction form
    13,739.61/20,595.53 = 5,425.50/x
  3. Step 3: Cross multiply
    13,739.61x = 20,595.53 × 5,425.50
  4. Step 4: Simplify right side
    13,739.61x = 111,741,020.89
  5. Step 5: Solve for x
    x = 111,741,020.89/13,739.61
  6. Step 6: Final answer
    x = 8,132.77

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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.