Home / 7,421.42-11,107.53-4,485.38

Finding the Fourth Proportional to 7,421.42, 11,107.53 and 4,485.38

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Solution

The fourth proportional to 7,421.42, 11,107.53 and 4,485.38 is: 6,713.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.42 : 11,107.53 = 4,485.38 : x
  2. Step 2: Convert to fraction form
    7,421.42/11,107.53 = 4,485.38/x
  3. Step 3: Cross multiply
    7,421.42x = 11,107.53 × 4,485.38
  4. Step 4: Simplify right side
    7,421.42x = 49,821,437.37
  5. Step 5: Solve for x
    x = 49,821,437.37/7,421.42
  6. Step 6: Final answer
    x = 6,713.19

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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.