Home / 13,283.50-18,331.23-7,395.50

Finding the Fourth Proportional to 13,283.50, 18,331.23 and 7,395.50

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Solution

The fourth proportional to 13,283.50, 18,331.23 and 7,395.50 is: 10,205.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.50 : 18,331.23 = 7,395.50 : x
  2. Step 2: Convert to fraction form
    13,283.50/18,331.23 = 7,395.50/x
  3. Step 3: Cross multiply
    13,283.50x = 18,331.23 × 7,395.50
  4. Step 4: Simplify right side
    13,283.50x = 135,568,611.47
  5. Step 5: Solve for x
    x = 135,568,611.47/13,283.50
  6. Step 6: Final answer
    x = 10,205.79

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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.