Home / 12,251.66-18,366.48-4,455

Finding the Fourth Proportional to 12,251.66, 18,366.48 and 4,455

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Solution

The fourth proportional to 12,251.66, 18,366.48 and 4,455 is: 6,678.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.66 : 18,366.48 = 4,455 : x
  2. Step 2: Convert to fraction form
    12,251.66/18,366.48 = 4,455/x
  3. Step 3: Cross multiply
    12,251.66x = 18,366.48 × 4,455
  4. Step 4: Simplify right side
    12,251.66x = 81,822,668.40
  5. Step 5: Solve for x
    x = 81,822,668.40/12,251.66
  6. Step 6: Final answer
    x = 6,678.50

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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.