Home / 11,214.08-16,821.84-8,585.36

Finding the Fourth Proportional to 11,214.08, 16,821.84 and 8,585.36

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Solution

The fourth proportional to 11,214.08, 16,821.84 and 8,585.36 is: 12,878.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.08 : 16,821.84 = 8,585.36 : x
  2. Step 2: Convert to fraction form
    11,214.08/16,821.84 = 8,585.36/x
  3. Step 3: Cross multiply
    11,214.08x = 16,821.84 × 8,585.36
  4. Step 4: Simplify right side
    11,214.08x = 144,421,552.26
  5. Step 5: Solve for x
    x = 144,421,552.26/11,214.08
  6. Step 6: Final answer
    x = 12,878.59

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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.