Home / 11,983.78-16,537.47-6,678.59

Finding the Fourth Proportional to 11,983.78, 16,537.47 and 6,678.59

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Solution

The fourth proportional to 11,983.78, 16,537.47 and 6,678.59 is: 9,216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.78 : 16,537.47 = 6,678.59 : x
  2. Step 2: Convert to fraction form
    11,983.78/16,537.47 = 6,678.59/x
  3. Step 3: Cross multiply
    11,983.78x = 16,537.47 × 6,678.59
  4. Step 4: Simplify right side
    11,983.78x = 110,446,874.04
  5. Step 5: Solve for x
    x = 110,446,874.04/11,983.78
  6. Step 6: Final answer
    x = 9,216.36

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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.