Home / 19,739.15-27,238.86-10,786.72

Finding the Fourth Proportional to 19,739.15, 27,238.86 and 10,786.72

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Solution

The fourth proportional to 19,739.15, 27,238.86 and 10,786.72 is: 14,885.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.15 : 27,238.86 = 10,786.72 : x
  2. Step 2: Convert to fraction form
    19,739.15/27,238.86 = 10,786.72/x
  3. Step 3: Cross multiply
    19,739.15x = 27,238.86 × 10,786.72
  4. Step 4: Simplify right side
    19,739.15x = 293,817,819.74
  5. Step 5: Solve for x
    x = 293,817,819.74/19,739.15
  6. Step 6: Final answer
    x = 14,885.03

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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.