Home / 11,136.58-16,666.19-6,918.10

Finding the Fourth Proportional to 11,136.58, 16,666.19 and 6,918.10

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Solution

The fourth proportional to 11,136.58, 16,666.19 and 6,918.10 is: 10,353.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.58 : 16,666.19 = 6,918.10 : x
  2. Step 2: Convert to fraction form
    11,136.58/16,666.19 = 6,918.10/x
  3. Step 3: Cross multiply
    11,136.58x = 16,666.19 × 6,918.10
  4. Step 4: Simplify right side
    11,136.58x = 115,298,369.04
  5. Step 5: Solve for x
    x = 115,298,369.04/11,136.58
  6. Step 6: Final answer
    x = 10,353.12

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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.