Home / 11,279.63-16,919.36-8,816.52

Finding the Fourth Proportional to 11,279.63, 16,919.36 and 8,816.52

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Solution

The fourth proportional to 11,279.63, 16,919.36 and 8,816.52 is: 13,224.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.63 : 16,919.36 = 8,816.52 : x
  2. Step 2: Convert to fraction form
    11,279.63/16,919.36 = 8,816.52/x
  3. Step 3: Cross multiply
    11,279.63x = 16,919.36 × 8,816.52
  4. Step 4: Simplify right side
    11,279.63x = 149,169,875.83
  5. Step 5: Solve for x
    x = 149,169,875.83/11,279.63
  6. Step 6: Final answer
    x = 13,224.72

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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.