Home / 13,591.45-20,392.36-5,277.30

Finding the Fourth Proportional to 13,591.45, 20,392.36 and 5,277.30

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Solution

The fourth proportional to 13,591.45, 20,392.36 and 5,277.30 is: 7,917.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.45 : 20,392.36 = 5,277.30 : x
  2. Step 2: Convert to fraction form
    13,591.45/20,392.36 = 5,277.30/x
  3. Step 3: Cross multiply
    13,591.45x = 20,392.36 × 5,277.30
  4. Step 4: Simplify right side
    13,591.45x = 107,616,511.76
  5. Step 5: Solve for x
    x = 107,616,511.76/13,591.45
  6. Step 6: Final answer
    x = 7,917.96

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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.