Home / 8,717.64-12,028.86-4,940.03

Finding the Fourth Proportional to 8,717.64, 12,028.86 and 4,940.03

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Solution

The fourth proportional to 8,717.64, 12,028.86 and 4,940.03 is: 6,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.64 : 12,028.86 = 4,940.03 : x
  2. Step 2: Convert to fraction form
    8,717.64/12,028.86 = 4,940.03/x
  3. Step 3: Cross multiply
    8,717.64x = 12,028.86 × 4,940.03
  4. Step 4: Simplify right side
    8,717.64x = 59,422,929.27
  5. Step 5: Solve for x
    x = 59,422,929.27/8,717.64
  6. Step 6: Final answer
    x = 6,816.40

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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.