Home / 11,724.85-16,180.73-6,689.89

Finding the Fourth Proportional to 11,724.85, 16,180.73 and 6,689.89

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Solution

The fourth proportional to 11,724.85, 16,180.73 and 6,689.89 is: 9,232.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.85 : 16,180.73 = 6,689.89 : x
  2. Step 2: Convert to fraction form
    11,724.85/16,180.73 = 6,689.89/x
  3. Step 3: Cross multiply
    11,724.85x = 16,180.73 × 6,689.89
  4. Step 4: Simplify right side
    11,724.85x = 108,247,303.82
  5. Step 5: Solve for x
    x = 108,247,303.82/11,724.85
  6. Step 6: Final answer
    x = 9,232.30

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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.