Home / 9,136.67-12,608.61-6,343.79

Finding the Fourth Proportional to 9,136.67, 12,608.61 and 6,343.79

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Solution

The fourth proportional to 9,136.67, 12,608.61 and 6,343.79 is: 8,754.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,136.67 : 12,608.61 = 6,343.79 : x
  2. Step 2: Convert to fraction form
    9,136.67/12,608.61 = 6,343.79/x
  3. Step 3: Cross multiply
    9,136.67x = 12,608.61 × 6,343.79
  4. Step 4: Simplify right side
    9,136.67x = 79,986,374.03
  5. Step 5: Solve for x
    x = 79,986,374.03/9,136.67
  6. Step 6: Final answer
    x = 8,754.43

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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.