Home / 19,106.46-28,679.13-12,846.78

Finding the Fourth Proportional to 19,106.46, 28,679.13 and 12,846.78

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Solution

The fourth proportional to 19,106.46, 28,679.13 and 12,846.78 is: 19,283.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,106.46 : 28,679.13 = 12,846.78 : x
  2. Step 2: Convert to fraction form
    19,106.46/28,679.13 = 12,846.78/x
  3. Step 3: Cross multiply
    19,106.46x = 28,679.13 × 12,846.78
  4. Step 4: Simplify right side
    19,106.46x = 368,434,473.70
  5. Step 5: Solve for x
    x = 368,434,473.70/19,106.46
  6. Step 6: Final answer
    x = 19,283.24

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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.