Home / 12,718.96-19,076.80-3,953.68

Finding the Fourth Proportional to 12,718.96, 19,076.80 and 3,953.68

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Solution

The fourth proportional to 12,718.96, 19,076.80 and 3,953.68 is: 5,930.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.96 : 19,076.80 = 3,953.68 : x
  2. Step 2: Convert to fraction form
    12,718.96/19,076.80 = 3,953.68/x
  3. Step 3: Cross multiply
    12,718.96x = 19,076.80 × 3,953.68
  4. Step 4: Simplify right side
    12,718.96x = 75,423,562.62
  5. Step 5: Solve for x
    x = 75,423,562.62/12,718.96
  6. Step 6: Final answer
    x = 5,930.01

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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.