Home / 13,112.44-18,095.50-7,144.42

Finding the Fourth Proportional to 13,112.44, 18,095.50 and 7,144.42

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Solution

The fourth proportional to 13,112.44, 18,095.50 and 7,144.42 is: 9,859.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.44 : 18,095.50 = 7,144.42 : x
  2. Step 2: Convert to fraction form
    13,112.44/18,095.50 = 7,144.42/x
  3. Step 3: Cross multiply
    13,112.44x = 18,095.50 × 7,144.42
  4. Step 4: Simplify right side
    13,112.44x = 129,281,852.11
  5. Step 5: Solve for x
    x = 129,281,852.11/13,112.44
  6. Step 6: Final answer
    x = 9,859.48

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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.