Home / 19,403.50-26,775.57-11,443.90

Finding the Fourth Proportional to 19,403.50, 26,775.57 and 11,443.90

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Solution

The fourth proportional to 19,403.50, 26,775.57 and 11,443.90 is: 15,791.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,403.50 : 26,775.57 = 11,443.90 : x
  2. Step 2: Convert to fraction form
    19,403.50/26,775.57 = 11,443.90/x
  3. Step 3: Cross multiply
    19,403.50x = 26,775.57 × 11,443.90
  4. Step 4: Simplify right side
    19,403.50x = 306,416,945.52
  5. Step 5: Solve for x
    x = 306,416,945.52/19,403.50
  6. Step 6: Final answer
    x = 15,791.84

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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.