Home / 13,788.04-19,027.84-7,820.11

Finding the Fourth Proportional to 13,788.04, 19,027.84 and 7,820.11

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Solution

The fourth proportional to 13,788.04, 19,027.84 and 7,820.11 is: 10,791.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.04 : 19,027.84 = 7,820.11 : x
  2. Step 2: Convert to fraction form
    13,788.04/19,027.84 = 7,820.11/x
  3. Step 3: Cross multiply
    13,788.04x = 19,027.84 × 7,820.11
  4. Step 4: Simplify right side
    13,788.04x = 148,799,734.74
  5. Step 5: Solve for x
    x = 148,799,734.74/13,788.04
  6. Step 6: Final answer
    x = 10,791.94

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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.