Home / 12,013.58-16,578.81-6,708.86

Finding the Fourth Proportional to 12,013.58, 16,578.81 and 6,708.86

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Solution

The fourth proportional to 12,013.58, 16,578.81 and 6,708.86 is: 9,258.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.58 : 16,578.81 = 6,708.86 : x
  2. Step 2: Convert to fraction form
    12,013.58/16,578.81 = 6,708.86/x
  3. Step 3: Cross multiply
    12,013.58x = 16,578.81 × 6,708.86
  4. Step 4: Simplify right side
    12,013.58x = 111,224,915.26
  5. Step 5: Solve for x
    x = 111,224,915.26/12,013.58
  6. Step 6: Final answer
    x = 9,258.27

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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.