Home / 15,297.60-21,109.86-8,582.04

Finding the Fourth Proportional to 15,297.60, 21,109.86 and 8,582.04

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Solution

The fourth proportional to 15,297.60, 21,109.86 and 8,582.04 is: 11,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.60 : 21,109.86 = 8,582.04 : x
  2. Step 2: Convert to fraction form
    15,297.60/21,109.86 = 8,582.04/x
  3. Step 3: Cross multiply
    15,297.60x = 21,109.86 × 8,582.04
  4. Step 4: Simplify right side
    15,297.60x = 181,165,662.91
  5. Step 5: Solve for x
    x = 181,165,662.91/15,297.60
  6. Step 6: Final answer
    x = 11,842.75

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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.