Home / 13,565.58-20,351.54-4,205.11

Finding the Fourth Proportional to 13,565.58, 20,351.54 and 4,205.11

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Solution

The fourth proportional to 13,565.58, 20,351.54 and 4,205.11 is: 6,308.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.58 : 20,351.54 = 4,205.11 : x
  2. Step 2: Convert to fraction form
    13,565.58/20,351.54 = 4,205.11/x
  3. Step 3: Cross multiply
    13,565.58x = 20,351.54 × 4,205.11
  4. Step 4: Simplify right side
    13,565.58x = 85,580,464.37
  5. Step 5: Solve for x
    x = 85,580,464.37/13,565.58
  6. Step 6: Final answer
    x = 6,308.65

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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.