Home / 15,297.04-21,109.79-8,582.53

Finding the Fourth Proportional to 15,297.04, 21,109.79 and 8,582.53

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Solution

The fourth proportional to 15,297.04, 21,109.79 and 8,582.53 is: 11,843.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.04 : 21,109.79 = 8,582.53 : x
  2. Step 2: Convert to fraction form
    15,297.04/21,109.79 = 8,582.53/x
  3. Step 3: Cross multiply
    15,297.04x = 21,109.79 × 8,582.53
  4. Step 4: Simplify right side
    15,297.04x = 181,175,405.97
  5. Step 5: Solve for x
    x = 181,175,405.97/15,297.04
  6. Step 6: Final answer
    x = 11,843.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.