Home / 11,988.61-16,544.55-6,683.75

Finding the Fourth Proportional to 11,988.61, 16,544.55 and 6,683.75

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Solution

The fourth proportional to 11,988.61, 16,544.55 and 6,683.75 is: 9,223.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.61 : 16,544.55 = 6,683.75 : x
  2. Step 2: Convert to fraction form
    11,988.61/16,544.55 = 6,683.75/x
  3. Step 3: Cross multiply
    11,988.61x = 16,544.55 × 6,683.75
  4. Step 4: Simplify right side
    11,988.61x = 110,579,640.45
  5. Step 5: Solve for x
    x = 110,579,640.45/11,988.61
  6. Step 6: Final answer
    x = 9,223.73

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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.