Home / 10,986.10-16,515.60-9,382.30

Finding the Fourth Proportional to 10,986.10, 16,515.60 and 9,382.30

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Solution

The fourth proportional to 10,986.10, 16,515.60 and 9,382.30 is: 14,104.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.10 : 16,515.60 = 9,382.30 : x
  2. Step 2: Convert to fraction form
    10,986.10/16,515.60 = 9,382.30/x
  3. Step 3: Cross multiply
    10,986.10x = 16,515.60 × 9,382.30
  4. Step 4: Simplify right side
    10,986.10x = 154,954,313.88
  5. Step 5: Solve for x
    x = 154,954,313.88/10,986.10
  6. Step 6: Final answer
    x = 14,104.58

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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.