Home / 11,722.19-16,159.77-8,359.16

Finding the Fourth Proportional to 11,722.19, 16,159.77 and 8,359.16

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Solution

The fourth proportional to 11,722.19, 16,159.77 and 8,359.16 is: 11,523.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.19 : 16,159.77 = 8,359.16 : x
  2. Step 2: Convert to fraction form
    11,722.19/16,159.77 = 8,359.16/x
  3. Step 3: Cross multiply
    11,722.19x = 16,159.77 × 8,359.16
  4. Step 4: Simplify right side
    11,722.19x = 135,082,022.19
  5. Step 5: Solve for x
    x = 135,082,022.19/11,722.19
  6. Step 6: Final answer
    x = 11,523.62

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1.5x scale

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.