Home / 13,902.16-19,185.80-7,935.75

Finding the Fourth Proportional to 13,902.16, 19,185.80 and 7,935.75

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Solution

The fourth proportional to 13,902.16, 19,185.80 and 7,935.75 is: 10,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.16 : 19,185.80 = 7,935.75 : x
  2. Step 2: Convert to fraction form
    13,902.16/19,185.80 = 7,935.75/x
  3. Step 3: Cross multiply
    13,902.16x = 19,185.80 × 7,935.75
  4. Step 4: Simplify right side
    13,902.16x = 152,253,672.67
  5. Step 5: Solve for x
    x = 152,253,672.67/13,902.16
  6. Step 6: Final answer
    x = 10,951.80

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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.