Home / 13,662.28-18,855.30-7,996.69

Finding the Fourth Proportional to 13,662.28, 18,855.30 and 7,996.69

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Solution

The fourth proportional to 13,662.28, 18,855.30 and 7,996.69 is: 11,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662.28 : 18,855.30 = 7,996.69 : x
  2. Step 2: Convert to fraction form
    13,662.28/18,855.30 = 7,996.69/x
  3. Step 3: Cross multiply
    13,662.28x = 18,855.30 × 7,996.69
  4. Step 4: Simplify right side
    13,662.28x = 150,779,988.96
  5. Step 5: Solve for x
    x = 150,779,988.96/13,662.28
  6. Step 6: Final answer
    x = 11,036.22

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Half scale
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Double scale
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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.