Home / 13,788.12-19,027.50-7,500.48

Finding the Fourth Proportional to 13,788.12, 19,027.50 and 7,500.48

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Solution

The fourth proportional to 13,788.12, 19,027.50 and 7,500.48 is: 10,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.12 : 19,027.50 = 7,500.48 : x
  2. Step 2: Convert to fraction form
    13,788.12/19,027.50 = 7,500.48/x
  3. Step 3: Cross multiply
    13,788.12x = 19,027.50 × 7,500.48
  4. Step 4: Simplify right side
    13,788.12x = 142,715,383.20
  5. Step 5: Solve for x
    x = 142,715,383.20/13,788.12
  6. Step 6: Final answer
    x = 10,350.60

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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.