Home / 10,857.78-14,984.46-6,078.18

Finding the Fourth Proportional to 10,857.78, 14,984.46 and 6,078.18

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Solution

The fourth proportional to 10,857.78, 14,984.46 and 6,078.18 is: 8,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,857.78 : 14,984.46 = 6,078.18 : x
  2. Step 2: Convert to fraction form
    10,857.78/14,984.46 = 6,078.18/x
  3. Step 3: Cross multiply
    10,857.78x = 14,984.46 × 6,078.18
  4. Step 4: Simplify right side
    10,857.78x = 91,078,245.08
  5. Step 5: Solve for x
    x = 91,078,245.08/10,857.78
  6. Step 6: Final answer
    x = 8,388.29

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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.