Home / 13,650.47-20,445.99-8,369.51

Finding the Fourth Proportional to 13,650.47, 20,445.99 and 8,369.51

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Solution

The fourth proportional to 13,650.47, 20,445.99 and 8,369.51 is: 12,536.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.47 : 20,445.99 = 8,369.51 : x
  2. Step 2: Convert to fraction form
    13,650.47/20,445.99 = 8,369.51/x
  3. Step 3: Cross multiply
    13,650.47x = 20,445.99 × 8,369.51
  4. Step 4: Simplify right side
    13,650.47x = 171,122,917.76
  5. Step 5: Solve for x
    x = 171,122,917.76/13,650.47
  6. Step 6: Final answer
    x = 12,536.05

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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.