Home / 13,685.58-20,525.41-4,326.31

Finding the Fourth Proportional to 13,685.58, 20,525.41 and 4,326.31

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Solution

The fourth proportional to 13,685.58, 20,525.41 and 4,326.31 is: 6,488.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685.58 : 20,525.41 = 4,326.31 : x
  2. Step 2: Convert to fraction form
    13,685.58/20,525.41 = 4,326.31/x
  3. Step 3: Cross multiply
    13,685.58x = 20,525.41 × 4,326.31
  4. Step 4: Simplify right side
    13,685.58x = 88,799,286.54
  5. Step 5: Solve for x
    x = 88,799,286.54/13,685.58
  6. Step 6: Final answer
    x = 6,488.53

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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.