Home / 11,860.56-16,362.44-7,142.12

Finding the Fourth Proportional to 11,860.56, 16,362.44 and 7,142.12

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Solution

The fourth proportional to 11,860.56, 16,362.44 and 7,142.12 is: 9,853.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.56 : 16,362.44 = 7,142.12 : x
  2. Step 2: Convert to fraction form
    11,860.56/16,362.44 = 7,142.12/x
  3. Step 3: Cross multiply
    11,860.56x = 16,362.44 × 7,142.12
  4. Step 4: Simplify right side
    11,860.56x = 116,862,509.97
  5. Step 5: Solve for x
    x = 116,862,509.97/11,860.56
  6. Step 6: Final answer
    x = 9,853.03

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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.