Home / 13,195.09-19,790.15-6,619.51

Finding the Fourth Proportional to 13,195.09, 19,790.15 and 6,619.51

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Solution

The fourth proportional to 13,195.09, 19,790.15 and 6,619.51 is: 9,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.09 : 19,790.15 = 6,619.51 : x
  2. Step 2: Convert to fraction form
    13,195.09/19,790.15 = 6,619.51/x
  3. Step 3: Cross multiply
    13,195.09x = 19,790.15 × 6,619.51
  4. Step 4: Simplify right side
    13,195.09x = 131,000,996.88
  5. Step 5: Solve for x
    x = 131,000,996.88/13,195.09
  6. Step 6: Final answer
    x = 9,928.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.