Home / 13,509.60-20,265.84-6,394.56

Finding the Fourth Proportional to 13,509.60, 20,265.84 and 6,394.56

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Solution

The fourth proportional to 13,509.60, 20,265.84 and 6,394.56 is: 9,592.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.60 : 20,265.84 = 6,394.56 : x
  2. Step 2: Convert to fraction form
    13,509.60/20,265.84 = 6,394.56/x
  3. Step 3: Cross multiply
    13,509.60x = 20,265.84 × 6,394.56
  4. Step 4: Simplify right side
    13,509.60x = 129,591,129.83
  5. Step 5: Solve for x
    x = 129,591,129.83/13,509.60
  6. Step 6: Final answer
    x = 9,592.52

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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.