Home / 11,983.68-16,537.32-6,678.18

Finding the Fourth Proportional to 11,983.68, 16,537.32 and 6,678.18

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Solution

The fourth proportional to 11,983.68, 16,537.32 and 6,678.18 is: 9,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.68 : 16,537.32 = 6,678.18 : x
  2. Step 2: Convert to fraction form
    11,983.68/16,537.32 = 6,678.18/x
  3. Step 3: Cross multiply
    11,983.68x = 16,537.32 × 6,678.18
  4. Step 4: Simplify right side
    11,983.68x = 110,439,199.68
  5. Step 5: Solve for x
    x = 110,439,199.68/11,983.68
  6. Step 6: Final answer
    x = 9,215.80

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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.