Home / 10,885.78-16,334.29-4,644.12

Finding the Fourth Proportional to 10,885.78, 16,334.29 and 4,644.12

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Solution

The fourth proportional to 10,885.78, 16,334.29 and 4,644.12 is: 6,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.78 : 16,334.29 = 4,644.12 : x
  2. Step 2: Convert to fraction form
    10,885.78/16,334.29 = 4,644.12/x
  3. Step 3: Cross multiply
    10,885.78x = 16,334.29 × 4,644.12
  4. Step 4: Simplify right side
    10,885.78x = 75,858,394.07
  5. Step 5: Solve for x
    x = 75,858,394.07/10,885.78
  6. Step 6: Final answer
    x = 6,968.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.