Home / 7,900.12-11,840.76-3,677.70

Finding the Fourth Proportional to 7,900.12, 11,840.76 and 3,677.70

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Solution

The fourth proportional to 7,900.12, 11,840.76 and 3,677.70 is: 5,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.12 : 11,840.76 = 3,677.70 : x
  2. Step 2: Convert to fraction form
    7,900.12/11,840.76 = 3,677.70/x
  3. Step 3: Cross multiply
    7,900.12x = 11,840.76 × 3,677.70
  4. Step 4: Simplify right side
    7,900.12x = 43,546,763.05
  5. Step 5: Solve for x
    x = 43,546,763.05/7,900.12
  6. Step 6: Final answer
    x = 5,512.16

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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.