Home / 19,863.65-27,416.20-13,739.96

Finding the Fourth Proportional to 19,863.65, 27,416.20 and 13,739.96

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Solution

The fourth proportional to 19,863.65, 27,416.20 and 13,739.96 is: 18,964.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.65 : 27,416.20 = 13,739.96 : x
  2. Step 2: Convert to fraction form
    19,863.65/27,416.20 = 13,739.96/x
  3. Step 3: Cross multiply
    19,863.65x = 27,416.20 × 13,739.96
  4. Step 4: Simplify right side
    19,863.65x = 376,697,525.54
  5. Step 5: Solve for x
    x = 376,697,525.54/19,863.65
  6. Step 6: Final answer
    x = 18,964.17

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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.