Home / 13,235.72-18,265.80-7,571.36

Finding the Fourth Proportional to 13,235.72, 18,265.80 and 7,571.36

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Solution

The fourth proportional to 13,235.72, 18,265.80 and 7,571.36 is: 10,448.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.72 : 18,265.80 = 7,571.36 : x
  2. Step 2: Convert to fraction form
    13,235.72/18,265.80 = 7,571.36/x
  3. Step 3: Cross multiply
    13,235.72x = 18,265.80 × 7,571.36
  4. Step 4: Simplify right side
    13,235.72x = 138,296,947.49
  5. Step 5: Solve for x
    x = 138,296,947.49/13,235.72
  6. Step 6: Final answer
    x = 10,448.77

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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.