Home / 13,913.82-19,201.02-7,540.43

Finding the Fourth Proportional to 13,913.82, 19,201.02 and 7,540.43

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Solution

The fourth proportional to 13,913.82, 19,201.02 and 7,540.43 is: 10,405.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.82 : 19,201.02 = 7,540.43 : x
  2. Step 2: Convert to fraction form
    13,913.82/19,201.02 = 7,540.43/x
  3. Step 3: Cross multiply
    13,913.82x = 19,201.02 × 7,540.43
  4. Step 4: Simplify right side
    13,913.82x = 144,783,995.24
  5. Step 5: Solve for x
    x = 144,783,995.24/13,913.82
  6. Step 6: Final answer
    x = 10,405.77

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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.