Home / 13,685.09-20,525.87-4,326.05

Finding the Fourth Proportional to 13,685.09, 20,525.87 and 4,326.05

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Solution

The fourth proportional to 13,685.09, 20,525.87 and 4,326.05 is: 6,488.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685.09 : 20,525.87 = 4,326.05 : x
  2. Step 2: Convert to fraction form
    13,685.09/20,525.87 = 4,326.05/x
  3. Step 3: Cross multiply
    13,685.09x = 20,525.87 × 4,326.05
  4. Step 4: Simplify right side
    13,685.09x = 88,795,985.82
  5. Step 5: Solve for x
    x = 88,795,985.82/13,685.09
  6. Step 6: Final answer
    x = 6,488.52

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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.