Home / 13,661.82-20,483.73-5,342.76

Finding the Fourth Proportional to 13,661.82, 20,483.73 and 5,342.76

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Solution

The fourth proportional to 13,661.82, 20,483.73 and 5,342.76 is: 8,010.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,661.82 : 20,483.73 = 5,342.76 : x
  2. Step 2: Convert to fraction form
    13,661.82/20,483.73 = 5,342.76/x
  3. Step 3: Cross multiply
    13,661.82x = 20,483.73 × 5,342.76
  4. Step 4: Simplify right side
    13,661.82x = 109,439,653.29
  5. Step 5: Solve for x
    x = 109,439,653.29/13,661.82
  6. Step 6: Final answer
    x = 8,010.62

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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.