Home / 13,509.18-20,271.33-4,749.30

Finding the Fourth Proportional to 13,509.18, 20,271.33 and 4,749.30

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Solution

The fourth proportional to 13,509.18, 20,271.33 and 4,749.30 is: 7,126.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.18 : 20,271.33 = 4,749.30 : x
  2. Step 2: Convert to fraction form
    13,509.18/20,271.33 = 4,749.30/x
  3. Step 3: Cross multiply
    13,509.18x = 20,271.33 × 4,749.30
  4. Step 4: Simplify right side
    13,509.18x = 96,274,627.57
  5. Step 5: Solve for x
    x = 96,274,627.57/13,509.18
  6. Step 6: Final answer
    x = 7,126.61

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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.