Home / 19,518.87-29,278.35-4,727.73

Finding the Fourth Proportional to 19,518.87, 29,278.35 and 4,727.73

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Solution

The fourth proportional to 19,518.87, 29,278.35 and 4,727.73 is: 7,091.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.87 : 29,278.35 = 4,727.73 : x
  2. Step 2: Convert to fraction form
    19,518.87/29,278.35 = 4,727.73/x
  3. Step 3: Cross multiply
    19,518.87x = 29,278.35 × 4,727.73
  4. Step 4: Simplify right side
    19,518.87x = 138,420,133.65
  5. Step 5: Solve for x
    x = 138,420,133.65/19,518.87
  6. Step 6: Final answer
    x = 7,091.61

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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.