Home / 13,345.50-20,019.33-4,111.50

Finding the Fourth Proportional to 13,345.50, 20,019.33 and 4,111.50

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Solution

The fourth proportional to 13,345.50, 20,019.33 and 4,111.50 is: 6,167.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.50 : 20,019.33 = 4,111.50 : x
  2. Step 2: Convert to fraction form
    13,345.50/20,019.33 = 4,111.50/x
  3. Step 3: Cross multiply
    13,345.50x = 20,019.33 × 4,111.50
  4. Step 4: Simplify right side
    13,345.50x = 82,309,475.30
  5. Step 5: Solve for x
    x = 82,309,475.30/13,345.50
  6. Step 6: Final answer
    x = 6,167.58

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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.