Home / 11,619.57-16,026.89-7,639.41

Finding the Fourth Proportional to 11,619.57, 16,026.89 and 7,639.41

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Solution

The fourth proportional to 11,619.57, 16,026.89 and 7,639.41 is: 10,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.57 : 16,026.89 = 7,639.41 : x
  2. Step 2: Convert to fraction form
    11,619.57/16,026.89 = 7,639.41/x
  3. Step 3: Cross multiply
    11,619.57x = 16,026.89 × 7,639.41
  4. Step 4: Simplify right side
    11,619.57x = 122,435,903.60
  5. Step 5: Solve for x
    x = 122,435,903.60/11,619.57
  6. Step 6: Final answer
    x = 10,537.05

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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.