Home / 13,688.98-20,533.47-3,300.73

Finding the Fourth Proportional to 13,688.98, 20,533.47 and 3,300.73

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Solution

The fourth proportional to 13,688.98, 20,533.47 and 3,300.73 is: 4,951.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.98 : 20,533.47 = 3,300.73 : x
  2. Step 2: Convert to fraction form
    13,688.98/20,533.47 = 3,300.73/x
  3. Step 3: Cross multiply
    13,688.98x = 20,533.47 × 3,300.73
  4. Step 4: Simplify right side
    13,688.98x = 67,775,376.72
  5. Step 5: Solve for x
    x = 67,775,376.72/13,688.98
  6. Step 6: Final answer
    x = 4,951.09

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Similar ratio
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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.