Home / 11,891.76-16,412.36-6,855.02

Finding the Fourth Proportional to 11,891.76, 16,412.36 and 6,855.02

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Solution

The fourth proportional to 11,891.76, 16,412.36 and 6,855.02 is: 9,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.76 : 16,412.36 = 6,855.02 : x
  2. Step 2: Convert to fraction form
    11,891.76/16,412.36 = 6,855.02/x
  3. Step 3: Cross multiply
    11,891.76x = 16,412.36 × 6,855.02
  4. Step 4: Simplify right side
    11,891.76x = 112,507,056.05
  5. Step 5: Solve for x
    x = 112,507,056.05/11,891.76
  6. Step 6: Final answer
    x = 9,460.93

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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.