Home / 13,782.12-19,028.10-9,074.52

Finding the Fourth Proportional to 13,782.12, 19,028.10 and 9,074.52

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Solution

The fourth proportional to 13,782.12, 19,028.10 and 9,074.52 is: 12,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.12 : 19,028.10 = 9,074.52 : x
  2. Step 2: Convert to fraction form
    13,782.12/19,028.10 = 9,074.52/x
  3. Step 3: Cross multiply
    13,782.12x = 19,028.10 × 9,074.52
  4. Step 4: Simplify right side
    13,782.12x = 172,670,874.01
  5. Step 5: Solve for x
    x = 172,670,874.01/13,782.12
  6. Step 6: Final answer
    x = 12,528.61

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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.