Home / 13,195.44-18,209-7,225.98

Finding the Fourth Proportional to 13,195.44, 18,209 and 7,225.98

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Solution

The fourth proportional to 13,195.44, 18,209 and 7,225.98 is: 9,971.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.44 : 18,209 = 7,225.98 : x
  2. Step 2: Convert to fraction form
    13,195.44/18,209 = 7,225.98/x
  3. Step 3: Cross multiply
    13,195.44x = 18,209 × 7,225.98
  4. Step 4: Simplify right side
    13,195.44x = 131,577,869.82
  5. Step 5: Solve for x
    x = 131,577,869.82/13,195.44
  6. Step 6: Final answer
    x = 9,971.47

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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.