Home / 11,118.80-16,678.51-3,721.88

Finding the Fourth Proportional to 11,118.80, 16,678.51 and 3,721.88

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Solution

The fourth proportional to 11,118.80, 16,678.51 and 3,721.88 is: 5,582.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.80 : 16,678.51 = 3,721.88 : x
  2. Step 2: Convert to fraction form
    11,118.80/16,678.51 = 3,721.88/x
  3. Step 3: Cross multiply
    11,118.80x = 16,678.51 × 3,721.88
  4. Step 4: Simplify right side
    11,118.80x = 62,075,445.19
  5. Step 5: Solve for x
    x = 62,075,445.19/11,118.80
  6. Step 6: Final answer
    x = 5,582.93

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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.