Home / 9,231.77-12,736.85-5,455.05

Finding the Fourth Proportional to 9,231.77, 12,736.85 and 5,455.05

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Solution

The fourth proportional to 9,231.77, 12,736.85 and 5,455.05 is: 7,526.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.77 : 12,736.85 = 5,455.05 : x
  2. Step 2: Convert to fraction form
    9,231.77/12,736.85 = 5,455.05/x
  3. Step 3: Cross multiply
    9,231.77x = 12,736.85 × 5,455.05
  4. Step 4: Simplify right side
    9,231.77x = 69,480,078.55
  5. Step 5: Solve for x
    x = 69,480,078.55/9,231.77
  6. Step 6: Final answer
    x = 7,526.19

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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.