Home / 13,565.39-20,351.31-5,663.50

Finding the Fourth Proportional to 13,565.39, 20,351.31 and 5,663.50

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Solution

The fourth proportional to 13,565.39, 20,351.31 and 5,663.50 is: 8,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.39 : 20,351.31 = 5,663.50 : x
  2. Step 2: Convert to fraction form
    13,565.39/20,351.31 = 5,663.50/x
  3. Step 3: Cross multiply
    13,565.39x = 20,351.31 × 5,663.50
  4. Step 4: Simplify right side
    13,565.39x = 115,259,644.19
  5. Step 5: Solve for x
    x = 115,259,644.19/13,565.39
  6. Step 6: Final answer
    x = 8,496.60

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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.