Home / 13,340.18-20,004.72-5,015.90

Finding the Fourth Proportional to 13,340.18, 20,004.72 and 5,015.90

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Solution

The fourth proportional to 13,340.18, 20,004.72 and 5,015.90 is: 7,521.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.18 : 20,004.72 = 5,015.90 : x
  2. Step 2: Convert to fraction form
    13,340.18/20,004.72 = 5,015.90/x
  3. Step 3: Cross multiply
    13,340.18x = 20,004.72 × 5,015.90
  4. Step 4: Simplify right side
    13,340.18x = 100,341,675.05
  5. Step 5: Solve for x
    x = 100,341,675.05/13,340.18
  6. Step 6: Final answer
    x = 7,521.76

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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.