Home / 13,688.73-20,533.10-3,300.48

Finding the Fourth Proportional to 13,688.73, 20,533.10 and 3,300.48

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Solution

The fourth proportional to 13,688.73, 20,533.10 and 3,300.48 is: 4,950.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.73 : 20,533.10 = 3,300.48 : x
  2. Step 2: Convert to fraction form
    13,688.73/20,533.10 = 3,300.48/x
  3. Step 3: Cross multiply
    13,688.73x = 20,533.10 × 3,300.48
  4. Step 4: Simplify right side
    13,688.73x = 67,769,069.39
  5. Step 5: Solve for x
    x = 67,769,069.39/13,688.73
  6. Step 6: Final answer
    x = 4,950.72

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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.