Home / 12,277.07-16,928.94-8,291.25

Finding the Fourth Proportional to 12,277.07, 16,928.94 and 8,291.25

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Solution

The fourth proportional to 12,277.07, 16,928.94 and 8,291.25 is: 11,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.07 : 16,928.94 = 8,291.25 : x
  2. Step 2: Convert to fraction form
    12,277.07/16,928.94 = 8,291.25/x
  3. Step 3: Cross multiply
    12,277.07x = 16,928.94 × 8,291.25
  4. Step 4: Simplify right side
    12,277.07x = 140,362,073.78
  5. Step 5: Solve for x
    x = 140,362,073.78/12,277.07
  6. Step 6: Final answer
    x = 11,432.87

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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.