Home / 13,530.08-20,297.64-4,770.56

Finding the Fourth Proportional to 13,530.08, 20,297.64 and 4,770.56

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Solution

The fourth proportional to 13,530.08, 20,297.64 and 4,770.56 is: 7,156.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.08 : 20,297.64 = 4,770.56 : x
  2. Step 2: Convert to fraction form
    13,530.08/20,297.64 = 4,770.56/x
  3. Step 3: Cross multiply
    13,530.08x = 20,297.64 × 4,770.56
  4. Step 4: Simplify right side
    13,530.08x = 96,831,109.48
  5. Step 5: Solve for x
    x = 96,831,109.48/13,530.08
  6. Step 6: Final answer
    x = 7,156.73

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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.