Home / 13,205.31-19,794.63-8,278.41

Finding the Fourth Proportional to 13,205.31, 19,794.63 and 8,278.41

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Solution

The fourth proportional to 13,205.31, 19,794.63 and 8,278.41 is: 12,409.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.31 : 19,794.63 = 8,278.41 : x
  2. Step 2: Convert to fraction form
    13,205.31/19,794.63 = 8,278.41/x
  3. Step 3: Cross multiply
    13,205.31x = 19,794.63 × 8,278.41
  4. Step 4: Simplify right side
    13,205.31x = 163,868,062.94
  5. Step 5: Solve for x
    x = 163,868,062.94/13,205.31
  6. Step 6: Final answer
    x = 12,409.26

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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.