Home / 13,666.08-18,858.24-8,076

Finding the Fourth Proportional to 13,666.08, 18,858.24 and 8,076

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Solution

The fourth proportional to 13,666.08, 18,858.24 and 8,076 is: 11,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.08 : 18,858.24 = 8,076 : x
  2. Step 2: Convert to fraction form
    13,666.08/18,858.24 = 8,076/x
  3. Step 3: Cross multiply
    13,666.08x = 18,858.24 × 8,076
  4. Step 4: Simplify right side
    13,666.08x = 152,299,146.24
  5. Step 5: Solve for x
    x = 152,299,146.24/13,666.08
  6. Step 6: Final answer
    x = 11,144.32

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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.