Home / 13,191.36-19,772.80-6,604.48

Finding the Fourth Proportional to 13,191.36, 19,772.80 and 6,604.48

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Solution

The fourth proportional to 13,191.36, 19,772.80 and 6,604.48 is: 9,899.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.36 : 19,772.80 = 6,604.48 : x
  2. Step 2: Convert to fraction form
    13,191.36/19,772.80 = 6,604.48/x
  3. Step 3: Cross multiply
    13,191.36x = 19,772.80 × 6,604.48
  4. Step 4: Simplify right side
    13,191.36x = 130,589,062.14
  5. Step 5: Solve for x
    x = 130,589,062.14/13,191.36
  6. Step 6: Final answer
    x = 9,899.59

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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.