Home / 13,772.98-19,006.86-7,485.36

Finding the Fourth Proportional to 13,772.98, 19,006.86 and 7,485.36

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Solution

The fourth proportional to 13,772.98, 19,006.86 and 7,485.36 is: 10,329.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.98 : 19,006.86 = 7,485.36 : x
  2. Step 2: Convert to fraction form
    13,772.98/19,006.86 = 7,485.36/x
  3. Step 3: Cross multiply
    13,772.98x = 19,006.86 × 7,485.36
  4. Step 4: Simplify right side
    13,772.98x = 142,273,189.57
  5. Step 5: Solve for x
    x = 142,273,189.57/13,772.98
  6. Step 6: Final answer
    x = 10,329.88

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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.