Home / 19,719.54-27,205.19-12,152.70

Finding the Fourth Proportional to 19,719.54, 27,205.19 and 12,152.70

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Solution

The fourth proportional to 19,719.54, 27,205.19 and 12,152.70 is: 16,765.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.54 : 27,205.19 = 12,152.70 : x
  2. Step 2: Convert to fraction form
    19,719.54/27,205.19 = 12,152.70/x
  3. Step 3: Cross multiply
    19,719.54x = 27,205.19 × 12,152.70
  4. Step 4: Simplify right side
    19,719.54x = 330,616,497.32
  5. Step 5: Solve for x
    x = 330,616,497.32/19,719.54
  6. Step 6: Final answer
    x = 16,765.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.