Home / 11,119.42-15,323.60-7,970.14

Finding the Fourth Proportional to 11,119.42, 15,323.60 and 7,970.14

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Solution

The fourth proportional to 11,119.42, 15,323.60 and 7,970.14 is: 10,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.42 : 15,323.60 = 7,970.14 : x
  2. Step 2: Convert to fraction form
    11,119.42/15,323.60 = 7,970.14/x
  3. Step 3: Cross multiply
    11,119.42x = 15,323.60 × 7,970.14
  4. Step 4: Simplify right side
    11,119.42x = 122,131,120.84
  5. Step 5: Solve for x
    x = 122,131,120.84/11,119.42
  6. Step 6: Final answer
    x = 10,983.59

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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.