Home / 13,825.19-19,078.66-7,537.61

Finding the Fourth Proportional to 13,825.19, 19,078.66 and 7,537.61

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Solution

The fourth proportional to 13,825.19, 19,078.66 and 7,537.61 is: 10,401.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.19 : 19,078.66 = 7,537.61 : x
  2. Step 2: Convert to fraction form
    13,825.19/19,078.66 = 7,537.61/x
  3. Step 3: Cross multiply
    13,825.19x = 19,078.66 × 7,537.61
  4. Step 4: Simplify right side
    13,825.19x = 143,807,498.40
  5. Step 5: Solve for x
    x = 143,807,498.40/13,825.19
  6. Step 6: Final answer
    x = 10,401.85

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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.