Home / 7,421.04-11,131.90-4,131.65

Finding the Fourth Proportional to 7,421.04, 11,131.90 and 4,131.65

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Solution

The fourth proportional to 7,421.04, 11,131.90 and 4,131.65 is: 6,197.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.04 : 11,131.90 = 4,131.65 : x
  2. Step 2: Convert to fraction form
    7,421.04/11,131.90 = 4,131.65/x
  3. Step 3: Cross multiply
    7,421.04x = 11,131.90 × 4,131.65
  4. Step 4: Simplify right side
    7,421.04x = 45,993,132.14
  5. Step 5: Solve for x
    x = 45,993,132.14/7,421.04
  6. Step 6: Final answer
    x = 6,197.67

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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.