Home / 11,986.29-16,546.95-9,291.56

Finding the Fourth Proportional to 11,986.29, 16,546.95 and 9,291.56

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Solution

The fourth proportional to 11,986.29, 16,546.95 and 9,291.56 is: 12,826.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.29 : 16,546.95 = 9,291.56 : x
  2. Step 2: Convert to fraction form
    11,986.29/16,546.95 = 9,291.56/x
  3. Step 3: Cross multiply
    11,986.29x = 16,546.95 × 9,291.56
  4. Step 4: Simplify right side
    11,986.29x = 153,746,896.01
  5. Step 5: Solve for x
    x = 153,746,896.01/11,986.29
  6. Step 6: Final answer
    x = 12,826.90

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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.