Home / 19,847.76-27,392.07-12,684.27

Finding the Fourth Proportional to 19,847.76, 27,392.07 and 12,684.27

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Solution

The fourth proportional to 19,847.76, 27,392.07 and 12,684.27 is: 17,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,847.76 : 27,392.07 = 12,684.27 : x
  2. Step 2: Convert to fraction form
    19,847.76/27,392.07 = 12,684.27/x
  3. Step 3: Cross multiply
    19,847.76x = 27,392.07 × 12,684.27
  4. Step 4: Simplify right side
    19,847.76x = 347,448,411.74
  5. Step 5: Solve for x
    x = 347,448,411.74/19,847.76
  6. Step 6: Final answer
    x = 17,505.67

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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.