Home / 13,455.65-20,183.58-4,690.55

Finding the Fourth Proportional to 13,455.65, 20,183.58 and 4,690.55

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Solution

The fourth proportional to 13,455.65, 20,183.58 and 4,690.55 is: 7,035.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.65 : 20,183.58 = 4,690.55 : x
  2. Step 2: Convert to fraction form
    13,455.65/20,183.58 = 4,690.55/x
  3. Step 3: Cross multiply
    13,455.65x = 20,183.58 × 4,690.55
  4. Step 4: Simplify right side
    13,455.65x = 94,671,990.25
  5. Step 5: Solve for x
    x = 94,671,990.25/13,455.65
  6. Step 6: Final answer
    x = 7,035.86

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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.