Home / 8,989.72-13,466.79-4,239.38

Finding the Fourth Proportional to 8,989.72, 13,466.79 and 4,239.38

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Solution

The fourth proportional to 8,989.72, 13,466.79 and 4,239.38 is: 6,350.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.72 : 13,466.79 = 4,239.38 : x
  2. Step 2: Convert to fraction form
    8,989.72/13,466.79 = 4,239.38/x
  3. Step 3: Cross multiply
    8,989.72x = 13,466.79 × 4,239.38
  4. Step 4: Simplify right side
    8,989.72x = 57,090,751.66
  5. Step 5: Solve for x
    x = 57,090,751.66/8,989.72
  6. Step 6: Final answer
    x = 6,350.67

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1.5x scale

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.