Home / 13,991.57-19,302.24-9,205.37

Finding the Fourth Proportional to 13,991.57, 19,302.24 and 9,205.37

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Solution

The fourth proportional to 13,991.57, 19,302.24 and 9,205.37 is: 12,699.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.57 : 19,302.24 = 9,205.37 : x
  2. Step 2: Convert to fraction form
    13,991.57/19,302.24 = 9,205.37/x
  3. Step 3: Cross multiply
    13,991.57x = 19,302.24 × 9,205.37
  4. Step 4: Simplify right side
    13,991.57x = 177,684,164.52
  5. Step 5: Solve for x
    x = 177,684,164.52/13,991.57
  6. Step 6: Final answer
    x = 12,699.37

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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.