Home / 12,161.52-16,783.44-6,856.88

Finding the Fourth Proportional to 12,161.52, 16,783.44 and 6,856.88

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Solution

The fourth proportional to 12,161.52, 16,783.44 and 6,856.88 is: 9,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.52 : 16,783.44 = 6,856.88 : x
  2. Step 2: Convert to fraction form
    12,161.52/16,783.44 = 6,856.88/x
  3. Step 3: Cross multiply
    12,161.52x = 16,783.44 × 6,856.88
  4. Step 4: Simplify right side
    12,161.52x = 115,082,034.07
  5. Step 5: Solve for x
    x = 115,082,034.07/12,161.52
  6. Step 6: Final answer
    x = 9,462.80

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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.