Home / 25,257.91-37,910.16-12,786.77

Finding the Fourth Proportional to 25,257.91, 37,910.16 and 12,786.77

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Solution

The fourth proportional to 25,257.91, 37,910.16 and 12,786.77 is: 19,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,257.91 : 37,910.16 = 12,786.77 : x
  2. Step 2: Convert to fraction form
    25,257.91/37,910.16 = 12,786.77/x
  3. Step 3: Cross multiply
    25,257.91x = 37,910.16 × 12,786.77
  4. Step 4: Simplify right side
    25,257.91x = 484,748,698.61
  5. Step 5: Solve for x
    x = 484,748,698.61/25,257.91
  6. Step 6: Final answer
    x = 19,191.95

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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.