Home / 12,876.35-19,288.55-10,790.49

Finding the Fourth Proportional to 12,876.35, 19,288.55 and 10,790.49

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Solution

The fourth proportional to 12,876.35, 19,288.55 and 10,790.49 is: 16,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.35 : 19,288.55 = 10,790.49 : x
  2. Step 2: Convert to fraction form
    12,876.35/19,288.55 = 10,790.49/x
  3. Step 3: Cross multiply
    12,876.35x = 19,288.55 × 10,790.49
  4. Step 4: Simplify right side
    12,876.35x = 208,132,944.50
  5. Step 5: Solve for x
    x = 208,132,944.50/12,876.35
  6. Step 6: Final answer
    x = 16,163.98

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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.