Home / 13,731.02-20,584.23-7,149.67

Finding the Fourth Proportional to 13,731.02, 20,584.23 and 7,149.67

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Solution

The fourth proportional to 13,731.02, 20,584.23 and 7,149.67 is: 10,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.02 : 20,584.23 = 7,149.67 : x
  2. Step 2: Convert to fraction form
    13,731.02/20,584.23 = 7,149.67/x
  3. Step 3: Cross multiply
    13,731.02x = 20,584.23 × 7,149.67
  4. Step 4: Simplify right side
    13,731.02x = 147,170,373.43
  5. Step 5: Solve for x
    x = 147,170,373.43/13,731.02
  6. Step 6: Final answer
    x = 10,718.10

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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.