Home / 7,144.48-9,859.37-4,000.67

Finding the Fourth Proportional to 7,144.48, 9,859.37 and 4,000.67

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Solution

The fourth proportional to 7,144.48, 9,859.37 and 4,000.67 is: 5,520.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.48 : 9,859.37 = 4,000.67 : x
  2. Step 2: Convert to fraction form
    7,144.48/9,859.37 = 4,000.67/x
  3. Step 3: Cross multiply
    7,144.48x = 9,859.37 × 4,000.67
  4. Step 4: Simplify right side
    7,144.48x = 39,444,016.48
  5. Step 5: Solve for x
    x = 39,444,016.48/7,144.48
  6. Step 6: Final answer
    x = 5,520.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.