Home / 7,331.96-10,118.50-4,188.76

Finding the Fourth Proportional to 7,331.96, 10,118.50 and 4,188.76

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Solution

The fourth proportional to 7,331.96, 10,118.50 and 4,188.76 is: 5,780.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.96 : 10,118.50 = 4,188.76 : x
  2. Step 2: Convert to fraction form
    7,331.96/10,118.50 = 4,188.76/x
  3. Step 3: Cross multiply
    7,331.96x = 10,118.50 × 4,188.76
  4. Step 4: Simplify right side
    7,331.96x = 42,383,968.06
  5. Step 5: Solve for x
    x = 42,383,968.06/7,331.96
  6. Step 6: Final answer
    x = 5,780.71

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Half scale
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Double scale
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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.