Home / 11,909.70-16,431.62-6,873.26

Finding the Fourth Proportional to 11,909.70, 16,431.62 and 6,873.26

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Solution

The fourth proportional to 11,909.70, 16,431.62 and 6,873.26 is: 9,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.70 : 16,431.62 = 6,873.26 : x
  2. Step 2: Convert to fraction form
    11,909.70/16,431.62 = 6,873.26/x
  3. Step 3: Cross multiply
    11,909.70x = 16,431.62 × 6,873.26
  4. Step 4: Simplify right side
    11,909.70x = 112,938,796.48
  5. Step 5: Solve for x
    x = 112,938,796.48/11,909.70
  6. Step 6: Final answer
    x = 9,482.93

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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.