Home / 11,983.88-16,537.56-6,678.56

Finding the Fourth Proportional to 11,983.88, 16,537.56 and 6,678.56

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Solution

The fourth proportional to 11,983.88, 16,537.56 and 6,678.56 is: 9,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.88 : 16,537.56 = 6,678.56 : x
  2. Step 2: Convert to fraction form
    11,983.88/16,537.56 = 6,678.56/x
  3. Step 3: Cross multiply
    11,983.88x = 16,537.56 × 6,678.56
  4. Step 4: Simplify right side
    11,983.88x = 110,447,086.71
  5. Step 5: Solve for x
    x = 110,447,086.71/11,983.88
  6. Step 6: Final answer
    x = 9,216.30

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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.