Home / 11,518.77-17,278.48-3,199.40

Finding the Fourth Proportional to 11,518.77, 17,278.48 and 3,199.40

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Solution

The fourth proportional to 11,518.77, 17,278.48 and 3,199.40 is: 4,799.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.77 : 17,278.48 = 3,199.40 : x
  2. Step 2: Convert to fraction form
    11,518.77/17,278.48 = 3,199.40/x
  3. Step 3: Cross multiply
    11,518.77x = 17,278.48 × 3,199.40
  4. Step 4: Simplify right side
    11,518.77x = 55,280,751.31
  5. Step 5: Solve for x
    x = 55,280,751.31/11,518.77
  6. Step 6: Final answer
    x = 4,799.19

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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.