Home / 11,085.80-16,628.70-10,178.60

Finding the Fourth Proportional to 11,085.80, 16,628.70 and 10,178.60

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Solution

The fourth proportional to 11,085.80, 16,628.70 and 10,178.60 is: 15,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,085.80 : 16,628.70 = 10,178.60 : x
  2. Step 2: Convert to fraction form
    11,085.80/16,628.70 = 10,178.60/x
  3. Step 3: Cross multiply
    11,085.80x = 16,628.70 × 10,178.60
  4. Step 4: Simplify right side
    11,085.80x = 169,256,885.82
  5. Step 5: Solve for x
    x = 169,256,885.82/11,085.80
  6. Step 6: Final answer
    x = 15,267.90

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Similar ratio
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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.