Home / 17,730.69-26,628.77-11,891.40

Finding the Fourth Proportional to 17,730.69, 26,628.77 and 11,891.40

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Solution

The fourth proportional to 17,730.69, 26,628.77 and 11,891.40 is: 17,859.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,730.69 : 26,628.77 = 11,891.40 : x
  2. Step 2: Convert to fraction form
    17,730.69/26,628.77 = 11,891.40/x
  3. Step 3: Cross multiply
    17,730.69x = 26,628.77 × 11,891.40
  4. Step 4: Simplify right side
    17,730.69x = 316,653,355.58
  5. Step 5: Solve for x
    x = 316,653,355.58/17,730.69
  6. Step 6: Final answer
    x = 17,859.05

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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.