Home / 13,220.50-18,245.01-7,633.30

Finding the Fourth Proportional to 13,220.50, 18,245.01 and 7,633.30

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Solution

The fourth proportional to 13,220.50, 18,245.01 and 7,633.30 is: 10,534.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.50 : 18,245.01 = 7,633.30 : x
  2. Step 2: Convert to fraction form
    13,220.50/18,245.01 = 7,633.30/x
  3. Step 3: Cross multiply
    13,220.50x = 18,245.01 × 7,633.30
  4. Step 4: Simplify right side
    13,220.50x = 139,269,634.83
  5. Step 5: Solve for x
    x = 139,269,634.83/13,220.50
  6. Step 6: Final answer
    x = 10,534.37

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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.