Home / 13,557.70-20,345.19-5,766.50

Finding the Fourth Proportional to 13,557.70, 20,345.19 and 5,766.50

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Solution

The fourth proportional to 13,557.70, 20,345.19 and 5,766.50 is: 8,653.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.70 : 20,345.19 = 5,766.50 : x
  2. Step 2: Convert to fraction form
    13,557.70/20,345.19 = 5,766.50/x
  3. Step 3: Cross multiply
    13,557.70x = 20,345.19 × 5,766.50
  4. Step 4: Simplify right side
    13,557.70x = 117,320,538.14
  5. Step 5: Solve for x
    x = 117,320,538.14/13,557.70
  6. Step 6: Final answer
    x = 8,653.42

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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.