Home / 11,889.16-16,406.49-6,854.28

Finding the Fourth Proportional to 11,889.16, 16,406.49 and 6,854.28

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Solution

The fourth proportional to 11,889.16, 16,406.49 and 6,854.28 is: 9,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889.16 : 16,406.49 = 6,854.28 : x
  2. Step 2: Convert to fraction form
    11,889.16/16,406.49 = 6,854.28/x
  3. Step 3: Cross multiply
    11,889.16x = 16,406.49 × 6,854.28
  4. Step 4: Simplify right side
    11,889.16x = 112,454,676.28
  5. Step 5: Solve for x
    x = 112,454,676.28/11,889.16
  6. Step 6: Final answer
    x = 9,458.59

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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.