Home / 11,880.41-17,815.11-6,686.28

Finding the Fourth Proportional to 11,880.41, 17,815.11 and 6,686.28

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Solution

The fourth proportional to 11,880.41, 17,815.11 and 6,686.28 is: 10,026.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,880.41 : 17,815.11 = 6,686.28 : x
  2. Step 2: Convert to fraction form
    11,880.41/17,815.11 = 6,686.28/x
  3. Step 3: Cross multiply
    11,880.41x = 17,815.11 × 6,686.28
  4. Step 4: Simplify right side
    11,880.41x = 119,116,813.69
  5. Step 5: Solve for x
    x = 119,116,813.69/11,880.41
  6. Step 6: Final answer
    x = 10,026.33

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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.