Home / 19,516.50-26,944.38-12,813.86

Finding the Fourth Proportional to 19,516.50, 26,944.38 and 12,813.86

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Solution

The fourth proportional to 19,516.50, 26,944.38 and 12,813.86 is: 17,690.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,516.50 : 26,944.38 = 12,813.86 : x
  2. Step 2: Convert to fraction form
    19,516.50/26,944.38 = 12,813.86/x
  3. Step 3: Cross multiply
    19,516.50x = 26,944.38 × 12,813.86
  4. Step 4: Simplify right side
    19,516.50x = 345,261,378.38
  5. Step 5: Solve for x
    x = 345,261,378.38/19,516.50
  6. Step 6: Final answer
    x = 17,690.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.