Home / 11,928.24-16,476.47-9,078.31

Finding the Fourth Proportional to 11,928.24, 16,476.47 and 9,078.31

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Solution

The fourth proportional to 11,928.24, 16,476.47 and 9,078.31 is: 12,539.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.24 : 16,476.47 = 9,078.31 : x
  2. Step 2: Convert to fraction form
    11,928.24/16,476.47 = 9,078.31/x
  3. Step 3: Cross multiply
    11,928.24x = 16,476.47 × 9,078.31
  4. Step 4: Simplify right side
    11,928.24x = 149,578,511.61
  5. Step 5: Solve for x
    x = 149,578,511.61/11,928.24
  6. Step 6: Final answer
    x = 12,539.86

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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.