Home / 11,518.95-17,278.21-3,727.77

Finding the Fourth Proportional to 11,518.95, 17,278.21 and 3,727.77

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Solution

The fourth proportional to 11,518.95, 17,278.21 and 3,727.77 is: 5,591.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.95 : 17,278.21 = 3,727.77 : x
  2. Step 2: Convert to fraction form
    11,518.95/17,278.21 = 3,727.77/x
  3. Step 3: Cross multiply
    11,518.95x = 17,278.21 × 3,727.77
  4. Step 4: Simplify right side
    11,518.95x = 64,409,192.89
  5. Step 5: Solve for x
    x = 64,409,192.89/11,518.95
  6. Step 6: Final answer
    x = 5,591.59

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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.