Home / 18,185.58-25,099.55-11,382.76

Finding the Fourth Proportional to 18,185.58, 25,099.55 and 11,382.76

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Solution

The fourth proportional to 18,185.58, 25,099.55 and 11,382.76 is: 15,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.58 : 25,099.55 = 11,382.76 : x
  2. Step 2: Convert to fraction form
    18,185.58/25,099.55 = 11,382.76/x
  3. Step 3: Cross multiply
    18,185.58x = 25,099.55 × 11,382.76
  4. Step 4: Simplify right side
    18,185.58x = 285,702,153.76
  5. Step 5: Solve for x
    x = 285,702,153.76/18,185.58
  6. Step 6: Final answer
    x = 15,710.37

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Half scale
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Double scale
Find fourth proportional to 18,186.58, 25,100.93 and 11,383.76
Similar ratio
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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.