Home / 13,362.28-20,045.34-4,129

Finding the Fourth Proportional to 13,362.28, 20,045.34 and 4,129

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Solution

The fourth proportional to 13,362.28, 20,045.34 and 4,129 is: 6,194.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.28 : 20,045.34 = 4,129 : x
  2. Step 2: Convert to fraction form
    13,362.28/20,045.34 = 4,129/x
  3. Step 3: Cross multiply
    13,362.28x = 20,045.34 × 4,129
  4. Step 4: Simplify right side
    13,362.28x = 82,767,208.86
  5. Step 5: Solve for x
    x = 82,767,208.86/13,362.28
  6. Step 6: Final answer
    x = 6,194.09

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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.