Home / 13,362.47-20,021.49-9,405.44

Finding the Fourth Proportional to 13,362.47, 20,021.49 and 9,405.44

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Solution

The fourth proportional to 13,362.47, 20,021.49 and 9,405.44 is: 14,092.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.47 : 20,021.49 = 9,405.44 : x
  2. Step 2: Convert to fraction form
    13,362.47/20,021.49 = 9,405.44/x
  3. Step 3: Cross multiply
    13,362.47x = 20,021.49 × 9,405.44
  4. Step 4: Simplify right side
    13,362.47x = 188,310,822.80
  5. Step 5: Solve for x
    x = 188,310,822.80/13,362.47
  6. Step 6: Final answer
    x = 14,092.52

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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.