Home / 13,903.16-19,187.18-7,936.75

Finding the Fourth Proportional to 13,903.16, 19,187.18 and 7,936.75

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Solution

The fourth proportional to 13,903.16, 19,187.18 and 7,936.75 is: 10,953.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.16 : 19,187.18 = 7,936.75 : x
  2. Step 2: Convert to fraction form
    13,903.16/19,187.18 = 7,936.75/x
  3. Step 3: Cross multiply
    13,903.16x = 19,187.18 × 7,936.75
  4. Step 4: Simplify right side
    13,903.16x = 152,283,850.87
  5. Step 5: Solve for x
    x = 152,283,850.87/13,903.16
  6. Step 6: Final answer
    x = 10,953.18

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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.