Home / 13,619.44-18,790.12-7,650.32

Finding the Fourth Proportional to 13,619.44, 18,790.12 and 7,650.32

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Solution

The fourth proportional to 13,619.44, 18,790.12 and 7,650.32 is: 10,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.44 : 18,790.12 = 7,650.32 : x
  2. Step 2: Convert to fraction form
    13,619.44/18,790.12 = 7,650.32/x
  3. Step 3: Cross multiply
    13,619.44x = 18,790.12 × 7,650.32
  4. Step 4: Simplify right side
    13,619.44x = 143,750,430.84
  5. Step 5: Solve for x
    x = 143,750,430.84/13,619.44
  6. Step 6: Final answer
    x = 10,554.80

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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.