Home / 13,192.40-18,205.94-7,224.32

Finding the Fourth Proportional to 13,192.40, 18,205.94 and 7,224.32

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Solution

The fourth proportional to 13,192.40, 18,205.94 and 7,224.32 is: 9,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,192.40 : 18,205.94 = 7,224.32 : x
  2. Step 2: Convert to fraction form
    13,192.40/18,205.94 = 7,224.32/x
  3. Step 3: Cross multiply
    13,192.40x = 18,205.94 × 7,224.32
  4. Step 4: Simplify right side
    13,192.40x = 131,525,536.46
  5. Step 5: Solve for x
    x = 131,525,536.46/13,192.40
  6. Step 6: Final answer
    x = 9,969.80

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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.