Home / 25,861.63-38,782.71-8,326.75

Finding the Fourth Proportional to 25,861.63, 38,782.71 and 8,326.75

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Solution

The fourth proportional to 25,861.63, 38,782.71 and 8,326.75 is: 12,486.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861.63 : 38,782.71 = 8,326.75 : x
  2. Step 2: Convert to fraction form
    25,861.63/38,782.71 = 8,326.75/x
  3. Step 3: Cross multiply
    25,861.63x = 38,782.71 × 8,326.75
  4. Step 4: Simplify right side
    25,861.63x = 322,933,930.49
  5. Step 5: Solve for x
    x = 322,933,930.49/25,861.63
  6. Step 6: Final answer
    x = 12,486.99

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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.