Home / 18,983.12-28,476.12-5,132

Finding the Fourth Proportional to 18,983.12, 28,476.12 and 5,132

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Solution

The fourth proportional to 18,983.12, 28,476.12 and 5,132 is: 7,698.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.12 : 28,476.12 = 5,132 : x
  2. Step 2: Convert to fraction form
    18,983.12/28,476.12 = 5,132/x
  3. Step 3: Cross multiply
    18,983.12x = 28,476.12 × 5,132
  4. Step 4: Simplify right side
    18,983.12x = 146,139,447.84
  5. Step 5: Solve for x
    x = 146,139,447.84/18,983.12
  6. Step 6: Final answer
    x = 7,698.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.