Home / 12,719.88-19,079.04-3,953.52

Finding the Fourth Proportional to 12,719.88, 19,079.04 and 3,953.52

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Solution

The fourth proportional to 12,719.88, 19,079.04 and 3,953.52 is: 5,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.88 : 19,079.04 = 3,953.52 : x
  2. Step 2: Convert to fraction form
    12,719.88/19,079.04 = 3,953.52/x
  3. Step 3: Cross multiply
    12,719.88x = 19,079.04 × 3,953.52
  4. Step 4: Simplify right side
    12,719.88x = 75,429,366.22
  5. Step 5: Solve for x
    x = 75,429,366.22/12,719.88
  6. Step 6: Final answer
    x = 5,930.04

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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.