Home / 11,811.19-16,299.40-6,506

Finding the Fourth Proportional to 11,811.19, 16,299.40 and 6,506

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Solution

The fourth proportional to 11,811.19, 16,299.40 and 6,506 is: 8,978.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.19 : 16,299.40 = 6,506 : x
  2. Step 2: Convert to fraction form
    11,811.19/16,299.40 = 6,506/x
  3. Step 3: Cross multiply
    11,811.19x = 16,299.40 × 6,506
  4. Step 4: Simplify right side
    11,811.19x = 106,043,896.40
  5. Step 5: Solve for x
    x = 106,043,896.40/11,811.19
  6. Step 6: Final answer
    x = 8,978.26

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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.