Home / 7,486.77-11,231.19-2,555.09

Finding the Fourth Proportional to 7,486.77, 11,231.19 and 2,555.09

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Solution

The fourth proportional to 7,486.77, 11,231.19 and 2,555.09 is: 3,832.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.77 : 11,231.19 = 2,555.09 : x
  2. Step 2: Convert to fraction form
    7,486.77/11,231.19 = 2,555.09/x
  3. Step 3: Cross multiply
    7,486.77x = 11,231.19 × 2,555.09
  4. Step 4: Simplify right side
    7,486.77x = 28,696,701.26
  5. Step 5: Solve for x
    x = 28,696,701.26/7,486.77
  6. Step 6: Final answer
    x = 3,832.99

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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.