Home / 6,421.26-9,623.69-4,231.53

Finding the Fourth Proportional to 6,421.26, 9,623.69 and 4,231.53

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Solution

The fourth proportional to 6,421.26, 9,623.69 and 4,231.53 is: 6,341.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.26 : 9,623.69 = 4,231.53 : x
  2. Step 2: Convert to fraction form
    6,421.26/9,623.69 = 4,231.53/x
  3. Step 3: Cross multiply
    6,421.26x = 9,623.69 × 4,231.53
  4. Step 4: Simplify right side
    6,421.26x = 40,722,911.79
  5. Step 5: Solve for x
    x = 40,722,911.79/6,421.26
  6. Step 6: Final answer
    x = 6,341.89

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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.