Home / 13,911.80-19,201.10-9,434.36

Finding the Fourth Proportional to 13,911.80, 19,201.10 and 9,434.36

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Solution

The fourth proportional to 13,911.80, 19,201.10 and 9,434.36 is: 13,021.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.80 : 19,201.10 = 9,434.36 : x
  2. Step 2: Convert to fraction form
    13,911.80/19,201.10 = 9,434.36/x
  3. Step 3: Cross multiply
    13,911.80x = 19,201.10 × 9,434.36
  4. Step 4: Simplify right side
    13,911.80x = 181,150,089.80
  5. Step 5: Solve for x
    x = 181,150,089.80/13,911.80
  6. Step 6: Final answer
    x = 13,021.33

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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.