Home / 8,106.36-11,186.12-4,748.76

Finding the Fourth Proportional to 8,106.36, 11,186.12 and 4,748.76

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Solution

The fourth proportional to 8,106.36, 11,186.12 and 4,748.76 is: 6,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.36 : 11,186.12 = 4,748.76 : x
  2. Step 2: Convert to fraction form
    8,106.36/11,186.12 = 4,748.76/x
  3. Step 3: Cross multiply
    8,106.36x = 11,186.12 × 4,748.76
  4. Step 4: Simplify right side
    8,106.36x = 53,120,199.21
  5. Step 5: Solve for x
    x = 53,120,199.21/8,106.36
  6. Step 6: Final answer
    x = 6,552.90

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Half scale
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Double scale
Find fourth proportional to 8,107.36, 11,187.50 and 4,749.76
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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.