Home / 13,303.36-18,359.94-9,940.33

Finding the Fourth Proportional to 13,303.36, 18,359.94 and 9,940.33

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Solution

The fourth proportional to 13,303.36, 18,359.94 and 9,940.33 is: 13,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.36 : 18,359.94 = 9,940.33 : x
  2. Step 2: Convert to fraction form
    13,303.36/18,359.94 = 9,940.33/x
  3. Step 3: Cross multiply
    13,303.36x = 18,359.94 × 9,940.33
  4. Step 4: Simplify right side
    13,303.36x = 182,503,886.89
  5. Step 5: Solve for x
    x = 182,503,886.89/13,303.36
  6. Step 6: Final answer
    x = 13,718.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.