Home / 11,819.80-17,730-3,054.68

Finding the Fourth Proportional to 11,819.80, 17,730 and 3,054.68

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Solution

The fourth proportional to 11,819.80, 17,730 and 3,054.68 is: 4,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.80 : 17,730 = 3,054.68 : x
  2. Step 2: Convert to fraction form
    11,819.80/17,730 = 3,054.68/x
  3. Step 3: Cross multiply
    11,819.80x = 17,730 × 3,054.68
  4. Step 4: Simplify right side
    11,819.80x = 54,159,476.40
  5. Step 5: Solve for x
    x = 54,159,476.40/11,819.80
  6. Step 6: Final answer
    x = 4,582.10

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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.