Home / 13,506.15-20,271.11-7,271.67

Finding the Fourth Proportional to 13,506.15, 20,271.11 and 7,271.67

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Solution

The fourth proportional to 13,506.15, 20,271.11 and 7,271.67 is: 10,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.15 : 20,271.11 = 7,271.67 : x
  2. Step 2: Convert to fraction form
    13,506.15/20,271.11 = 7,271.67/x
  3. Step 3: Cross multiply
    13,506.15x = 20,271.11 × 7,271.67
  4. Step 4: Simplify right side
    13,506.15x = 147,404,786.10
  5. Step 5: Solve for x
    x = 147,404,786.10/13,506.15
  6. Step 6: Final answer
    x = 10,913.90

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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.