Home / 8,620.99-11,896.63-5,269.41

Finding the Fourth Proportional to 8,620.99, 11,896.63 and 5,269.41

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Solution

The fourth proportional to 8,620.99, 11,896.63 and 5,269.41 is: 7,271.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.99 : 11,896.63 = 5,269.41 : x
  2. Step 2: Convert to fraction form
    8,620.99/11,896.63 = 5,269.41/x
  3. Step 3: Cross multiply
    8,620.99x = 11,896.63 × 5,269.41
  4. Step 4: Simplify right side
    8,620.99x = 62,688,221.09
  5. Step 5: Solve for x
    x = 62,688,221.09/8,620.99
  6. Step 6: Final answer
    x = 7,271.58

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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.