Home / 11,816.94-16,307.30-6,439.37

Finding the Fourth Proportional to 11,816.94, 16,307.30 and 6,439.37

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Solution

The fourth proportional to 11,816.94, 16,307.30 and 6,439.37 is: 8,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.94 : 16,307.30 = 6,439.37 : x
  2. Step 2: Convert to fraction form
    11,816.94/16,307.30 = 6,439.37/x
  3. Step 3: Cross multiply
    11,816.94x = 16,307.30 × 6,439.37
  4. Step 4: Simplify right side
    11,816.94x = 105,008,738.40
  5. Step 5: Solve for x
    x = 105,008,738.40/11,816.94
  6. Step 6: Final answer
    x = 8,886.29

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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.