Home / 10,112.54-15,168.27-3,186.50

Finding the Fourth Proportional to 10,112.54, 15,168.27 and 3,186.50

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Solution

The fourth proportional to 10,112.54, 15,168.27 and 3,186.50 is: 4,779.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.54 : 15,168.27 = 3,186.50 : x
  2. Step 2: Convert to fraction form
    10,112.54/15,168.27 = 3,186.50/x
  3. Step 3: Cross multiply
    10,112.54x = 15,168.27 × 3,186.50
  4. Step 4: Simplify right side
    10,112.54x = 48,333,692.36
  5. Step 5: Solve for x
    x = 48,333,692.36/10,112.54
  6. Step 6: Final answer
    x = 4,779.58

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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.