Home / 11,680.10-16,118.42-6,374.87

Finding the Fourth Proportional to 11,680.10, 16,118.42 and 6,374.87

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Solution

The fourth proportional to 11,680.10, 16,118.42 and 6,374.87 is: 8,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.10 : 16,118.42 = 6,374.87 : x
  2. Step 2: Convert to fraction form
    11,680.10/16,118.42 = 6,374.87/x
  3. Step 3: Cross multiply
    11,680.10x = 16,118.42 × 6,374.87
  4. Step 4: Simplify right side
    11,680.10x = 102,752,719.64
  5. Step 5: Solve for x
    x = 102,752,719.64/11,680.10
  6. Step 6: Final answer
    x = 8,797.25

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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.