Home / 8,091.55-12,133.54-5,642.11

Finding the Fourth Proportional to 8,091.55, 12,133.54 and 5,642.11

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Solution

The fourth proportional to 8,091.55, 12,133.54 and 5,642.11 is: 8,460.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.55 : 12,133.54 = 5,642.11 : x
  2. Step 2: Convert to fraction form
    8,091.55/12,133.54 = 5,642.11/x
  3. Step 3: Cross multiply
    8,091.55x = 12,133.54 × 5,642.11
  4. Step 4: Simplify right side
    8,091.55x = 68,458,767.37
  5. Step 5: Solve for x
    x = 68,458,767.37/8,091.55
  6. Step 6: Final answer
    x = 8,460.53

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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.