Home / 13,934.39-19,230.80-7,964.93

Finding the Fourth Proportional to 13,934.39, 19,230.80 and 7,964.93

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Solution

The fourth proportional to 13,934.39, 19,230.80 and 7,964.93 is: 10,992.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.39 : 19,230.80 = 7,964.93 : x
  2. Step 2: Convert to fraction form
    13,934.39/19,230.80 = 7,964.93/x
  3. Step 3: Cross multiply
    13,934.39x = 19,230.80 × 7,964.93
  4. Step 4: Simplify right side
    13,934.39x = 153,171,984.10
  5. Step 5: Solve for x
    x = 153,171,984.10/13,934.39
  6. Step 6: Final answer
    x = 10,992.37

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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.