Home / 9,328.26-12,872.61-5,136.24

Finding the Fourth Proportional to 9,328.26, 12,872.61 and 5,136.24

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Solution

The fourth proportional to 9,328.26, 12,872.61 and 5,136.24 is: 7,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.26 : 12,872.61 = 5,136.24 : x
  2. Step 2: Convert to fraction form
    9,328.26/12,872.61 = 5,136.24/x
  3. Step 3: Cross multiply
    9,328.26x = 12,872.61 × 5,136.24
  4. Step 4: Simplify right side
    9,328.26x = 66,116,814.39
  5. Step 5: Solve for x
    x = 66,116,814.39/9,328.26
  6. Step 6: Final answer
    x = 7,087.80

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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.