Home / 6,421.24-9,609.94-5,382.42

Finding the Fourth Proportional to 6,421.24, 9,609.94 and 5,382.42

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Solution

The fourth proportional to 6,421.24, 9,609.94 and 5,382.42 is: 8,055.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.24 : 9,609.94 = 5,382.42 : x
  2. Step 2: Convert to fraction form
    6,421.24/9,609.94 = 5,382.42/x
  3. Step 3: Cross multiply
    6,421.24x = 9,609.94 × 5,382.42
  4. Step 4: Simplify right side
    6,421.24x = 51,724,733.25
  5. Step 5: Solve for x
    x = 51,724,733.25/6,421.24
  6. Step 6: Final answer
    x = 8,055.26

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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.