Home / 13,772.62-19,006.41-7,485.13

Finding the Fourth Proportional to 13,772.62, 19,006.41 and 7,485.13

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Solution

The fourth proportional to 13,772.62, 19,006.41 and 7,485.13 is: 10,329.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.62 : 19,006.41 = 7,485.13 : x
  2. Step 2: Convert to fraction form
    13,772.62/19,006.41 = 7,485.13/x
  3. Step 3: Cross multiply
    13,772.62x = 19,006.41 × 7,485.13
  4. Step 4: Simplify right side
    13,772.62x = 142,265,449.68
  5. Step 5: Solve for x
    x = 142,265,449.68/13,772.62
  6. Step 6: Final answer
    x = 10,329.59

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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.