Home / 13,686.26-20,486.39-9,444.69

Finding the Fourth Proportional to 13,686.26, 20,486.39 and 9,444.69

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Solution

The fourth proportional to 13,686.26, 20,486.39 and 9,444.69 is: 14,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.26 : 20,486.39 = 9,444.69 : x
  2. Step 2: Convert to fraction form
    13,686.26/20,486.39 = 9,444.69/x
  3. Step 3: Cross multiply
    13,686.26x = 20,486.39 × 9,444.69
  4. Step 4: Simplify right side
    13,686.26x = 193,487,555.55
  5. Step 5: Solve for x
    x = 193,487,555.55/13,686.26
  6. Step 6: Final answer
    x = 14,137.36

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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.