Home / 11,883.75-16,399.58-6,915.75

Finding the Fourth Proportional to 11,883.75, 16,399.58 and 6,915.75

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Solution

The fourth proportional to 11,883.75, 16,399.58 and 6,915.75 is: 9,543.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,883.75 : 16,399.58 = 6,915.75 : x
  2. Step 2: Convert to fraction form
    11,883.75/16,399.58 = 6,915.75/x
  3. Step 3: Cross multiply
    11,883.75x = 16,399.58 × 6,915.75
  4. Step 4: Simplify right side
    11,883.75x = 113,415,360.81
  5. Step 5: Solve for x
    x = 113,415,360.81/11,883.75
  6. Step 6: Final answer
    x = 9,543.74

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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.