Home / 13,206.54-19,672.21-12,505.33

Finding the Fourth Proportional to 13,206.54, 19,672.21 and 12,505.33

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Solution

The fourth proportional to 13,206.54, 19,672.21 and 12,505.33 is: 18,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.54 : 19,672.21 = 12,505.33 : x
  2. Step 2: Convert to fraction form
    13,206.54/19,672.21 = 12,505.33/x
  3. Step 3: Cross multiply
    13,206.54x = 19,672.21 × 12,505.33
  4. Step 4: Simplify right side
    13,206.54x = 246,007,477.88
  5. Step 5: Solve for x
    x = 246,007,477.88/13,206.54
  6. Step 6: Final answer
    x = 18,627.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.