Home / 13,788.21-19,027.59-7,500.57

Finding the Fourth Proportional to 13,788.21, 19,027.59 and 7,500.57

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Solution

The fourth proportional to 13,788.21, 19,027.59 and 7,500.57 is: 10,350.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.21 : 19,027.59 = 7,500.57 : x
  2. Step 2: Convert to fraction form
    13,788.21/19,027.59 = 7,500.57/x
  3. Step 3: Cross multiply
    13,788.21x = 19,027.59 × 7,500.57
  4. Step 4: Simplify right side
    13,788.21x = 142,717,770.73
  5. Step 5: Solve for x
    x = 142,717,770.73/13,788.21
  6. Step 6: Final answer
    x = 10,350.71

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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.