Home / 12,876.33-19,321.80-6,953.15

Finding the Fourth Proportional to 12,876.33, 19,321.80 and 6,953.15

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Solution

The fourth proportional to 12,876.33, 19,321.80 and 6,953.15 is: 10,433.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.33 : 19,321.80 = 6,953.15 : x
  2. Step 2: Convert to fraction form
    12,876.33/19,321.80 = 6,953.15/x
  3. Step 3: Cross multiply
    12,876.33x = 19,321.80 × 6,953.15
  4. Step 4: Simplify right side
    12,876.33x = 134,347,277.06
  5. Step 5: Solve for x
    x = 134,347,277.06/12,876.33
  6. Step 6: Final answer
    x = 10,433.66

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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.