Home / 19,739.34-27,240.12-10,786.86

Finding the Fourth Proportional to 19,739.34, 27,240.12 and 10,786.86

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Solution

The fourth proportional to 19,739.34, 27,240.12 and 10,786.86 is: 14,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.34 : 27,240.12 = 10,786.86 : x
  2. Step 2: Convert to fraction form
    19,739.34/27,240.12 = 10,786.86/x
  3. Step 3: Cross multiply
    19,739.34x = 27,240.12 × 10,786.86
  4. Step 4: Simplify right side
    19,739.34x = 293,835,360.82
  5. Step 5: Solve for x
    x = 293,835,360.82/19,739.34
  6. Step 6: Final answer
    x = 14,885.77

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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.