Home / 11,710.33-16,160.64-6,405.15

Finding the Fourth Proportional to 11,710.33, 16,160.64 and 6,405.15

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Solution

The fourth proportional to 11,710.33, 16,160.64 and 6,405.15 is: 8,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,710.33 : 16,160.64 = 6,405.15 : x
  2. Step 2: Convert to fraction form
    11,710.33/16,160.64 = 6,405.15/x
  3. Step 3: Cross multiply
    11,710.33x = 16,160.64 × 6,405.15
  4. Step 4: Simplify right side
    11,710.33x = 103,511,305.00
  5. Step 5: Solve for x
    x = 103,511,305.00/11,710.33
  6. Step 6: Final answer
    x = 8,839.31

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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.