Home / 13,891.40-20,846.70-9,998.60

Finding the Fourth Proportional to 13,891.40, 20,846.70 and 9,998.60

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Solution

The fourth proportional to 13,891.40, 20,846.70 and 9,998.60 is: 15,004.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.40 : 20,846.70 = 9,998.60 : x
  2. Step 2: Convert to fraction form
    13,891.40/20,846.70 = 9,998.60/x
  3. Step 3: Cross multiply
    13,891.40x = 20,846.70 × 9,998.60
  4. Step 4: Simplify right side
    13,891.40x = 208,437,814.62
  5. Step 5: Solve for x
    x = 208,437,814.62/13,891.40
  6. Step 6: Final answer
    x = 15,004.81

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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.