Home / 12,858.20-19,293.03-8,176.95

Finding the Fourth Proportional to 12,858.20, 19,293.03 and 8,176.95

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Solution

The fourth proportional to 12,858.20, 19,293.03 and 8,176.95 is: 12,269.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.20 : 19,293.03 = 8,176.95 : x
  2. Step 2: Convert to fraction form
    12,858.20/19,293.03 = 8,176.95/x
  3. Step 3: Cross multiply
    12,858.20x = 19,293.03 × 8,176.95
  4. Step 4: Simplify right side
    12,858.20x = 157,758,141.66
  5. Step 5: Solve for x
    x = 157,758,141.66/12,858.20
  6. Step 6: Final answer
    x = 12,269.07

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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.