Home / 13,940.24-19,241.04-9,403.64

Finding the Fourth Proportional to 13,940.24, 19,241.04 and 9,403.64

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Solution

The fourth proportional to 13,940.24, 19,241.04 and 9,403.64 is: 12,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.24 : 19,241.04 = 9,403.64 : x
  2. Step 2: Convert to fraction form
    13,940.24/19,241.04 = 9,403.64/x
  3. Step 3: Cross multiply
    13,940.24x = 19,241.04 × 9,403.64
  4. Step 4: Simplify right side
    13,940.24x = 180,935,813.39
  5. Step 5: Solve for x
    x = 180,935,813.39/13,940.24
  6. Step 6: Final answer
    x = 12,979.39

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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.