Home / 13,005.90-19,500.21-5,608.44

Finding the Fourth Proportional to 13,005.90, 19,500.21 and 5,608.44

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Solution

The fourth proportional to 13,005.90, 19,500.21 and 5,608.44 is: 8,408.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.90 : 19,500.21 = 5,608.44 : x
  2. Step 2: Convert to fraction form
    13,005.90/19,500.21 = 5,608.44/x
  3. Step 3: Cross multiply
    13,005.90x = 19,500.21 × 5,608.44
  4. Step 4: Simplify right side
    13,005.90x = 109,365,757.77
  5. Step 5: Solve for x
    x = 109,365,757.77/13,005.90
  6. Step 6: Final answer
    x = 8,408.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.