Home / 11,904.15-16,441.74-7,918.14

Finding the Fourth Proportional to 11,904.15, 16,441.74 and 7,918.14

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Solution

The fourth proportional to 11,904.15, 16,441.74 and 7,918.14 is: 10,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.15 : 16,441.74 = 7,918.14 : x
  2. Step 2: Convert to fraction form
    11,904.15/16,441.74 = 7,918.14/x
  3. Step 3: Cross multiply
    11,904.15x = 16,441.74 × 7,918.14
  4. Step 4: Simplify right side
    11,904.15x = 130,187,999.16
  5. Step 5: Solve for x
    x = 130,187,999.16/11,904.15
  6. Step 6: Final answer
    x = 10,936.35

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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.