Home / 8,627.45-11,905.36-5,091.77

Finding the Fourth Proportional to 8,627.45, 11,905.36 and 5,091.77

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Solution

The fourth proportional to 8,627.45, 11,905.36 and 5,091.77 is: 7,026.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.45 : 11,905.36 = 5,091.77 : x
  2. Step 2: Convert to fraction form
    8,627.45/11,905.36 = 5,091.77/x
  3. Step 3: Cross multiply
    8,627.45x = 11,905.36 × 5,091.77
  4. Step 4: Simplify right side
    8,627.45x = 60,619,354.89
  5. Step 5: Solve for x
    x = 60,619,354.89/8,627.45
  6. Step 6: Final answer
    x = 7,026.34

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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.