Home / 19,199.18-26,505.32-13,262.78

Finding the Fourth Proportional to 19,199.18, 26,505.32 and 13,262.78

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Solution

The fourth proportional to 19,199.18, 26,505.32 and 13,262.78 is: 18,309.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.18 : 26,505.32 = 13,262.78 : x
  2. Step 2: Convert to fraction form
    19,199.18/26,505.32 = 13,262.78/x
  3. Step 3: Cross multiply
    19,199.18x = 26,505.32 × 13,262.78
  4. Step 4: Simplify right side
    19,199.18x = 351,534,227.99
  5. Step 5: Solve for x
    x = 351,534,227.99/19,199.18
  6. Step 6: Final answer
    x = 18,309.86

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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.