Home / 19,275.78-26,601.60-11,720.86

Finding the Fourth Proportional to 19,275.78, 26,601.60 and 11,720.86

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Solution

The fourth proportional to 19,275.78, 26,601.60 and 11,720.86 is: 16,175.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,275.78 : 26,601.60 = 11,720.86 : x
  2. Step 2: Convert to fraction form
    19,275.78/26,601.60 = 11,720.86/x
  3. Step 3: Cross multiply
    19,275.78x = 26,601.60 × 11,720.86
  4. Step 4: Simplify right side
    19,275.78x = 311,793,629.38
  5. Step 5: Solve for x
    x = 311,793,629.38/19,275.78
  6. Step 6: Final answer
    x = 16,175.41

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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.