Home / 13,788.41-19,027.94-7,500.78

Finding the Fourth Proportional to 13,788.41, 19,027.94 and 7,500.78

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Solution

The fourth proportional to 13,788.41, 19,027.94 and 7,500.78 is: 10,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.41 : 19,027.94 = 7,500.78 : x
  2. Step 2: Convert to fraction form
    13,788.41/19,027.94 = 7,500.78/x
  3. Step 3: Cross multiply
    13,788.41x = 19,027.94 × 7,500.78
  4. Step 4: Simplify right side
    13,788.41x = 142,724,354.29
  5. Step 5: Solve for x
    x = 142,724,354.29/13,788.41
  6. Step 6: Final answer
    x = 10,351.04

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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.