Home / 13,786.48-19,025.49-7,498.90

Finding the Fourth Proportional to 13,786.48, 19,025.49 and 7,498.90

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Solution

The fourth proportional to 13,786.48, 19,025.49 and 7,498.90 is: 10,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.48 : 19,025.49 = 7,498.90 : x
  2. Step 2: Convert to fraction form
    13,786.48/19,025.49 = 7,498.90/x
  3. Step 3: Cross multiply
    13,786.48x = 19,025.49 × 7,498.90
  4. Step 4: Simplify right side
    13,786.48x = 142,670,246.96
  5. Step 5: Solve for x
    x = 142,670,246.96/13,786.48
  6. Step 6: Final answer
    x = 10,348.56

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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.