Home / 13,003.67-19,516.45-12,183.55

Finding the Fourth Proportional to 13,003.67, 19,516.45 and 12,183.55

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Solution

The fourth proportional to 13,003.67, 19,516.45 and 12,183.55 is: 18,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.67 : 19,516.45 = 12,183.55 : x
  2. Step 2: Convert to fraction form
    13,003.67/19,516.45 = 12,183.55/x
  3. Step 3: Cross multiply
    13,003.67x = 19,516.45 × 12,183.55
  4. Step 4: Simplify right side
    13,003.67x = 237,779,565.15
  5. Step 5: Solve for x
    x = 237,779,565.15/13,003.67
  6. Step 6: Final answer
    x = 18,285.57

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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.