Home / 12,866.95-19,300.20-4,101.79

Finding the Fourth Proportional to 12,866.95, 19,300.20 and 4,101.79

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Solution

The fourth proportional to 12,866.95, 19,300.20 and 4,101.79 is: 6,152.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866.95 : 19,300.20 = 4,101.79 : x
  2. Step 2: Convert to fraction form
    12,866.95/19,300.20 = 4,101.79/x
  3. Step 3: Cross multiply
    12,866.95x = 19,300.20 × 4,101.79
  4. Step 4: Simplify right side
    12,866.95x = 79,165,367.36
  5. Step 5: Solve for x
    x = 79,165,367.36/12,866.95
  6. Step 6: Final answer
    x = 6,152.61

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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.