Home / 11,877.32-16,392.44-6,840.56

Finding the Fourth Proportional to 11,877.32, 16,392.44 and 6,840.56

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Solution

The fourth proportional to 11,877.32, 16,392.44 and 6,840.56 is: 9,440.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.32 : 16,392.44 = 6,840.56 : x
  2. Step 2: Convert to fraction form
    11,877.32/16,392.44 = 6,840.56/x
  3. Step 3: Cross multiply
    11,877.32x = 16,392.44 × 6,840.56
  4. Step 4: Simplify right side
    11,877.32x = 112,133,476.14
  5. Step 5: Solve for x
    x = 112,133,476.14/11,877.32
  6. Step 6: Final answer
    x = 9,440.97

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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.