Home / 13,896.06-19,174.50-8,442.30

Finding the Fourth Proportional to 13,896.06, 19,174.50 and 8,442.30

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Solution

The fourth proportional to 13,896.06, 19,174.50 and 8,442.30 is: 11,649.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896.06 : 19,174.50 = 8,442.30 : x
  2. Step 2: Convert to fraction form
    13,896.06/19,174.50 = 8,442.30/x
  3. Step 3: Cross multiply
    13,896.06x = 19,174.50 × 8,442.30
  4. Step 4: Simplify right side
    13,896.06x = 161,876,881.35
  5. Step 5: Solve for x
    x = 161,876,881.35/13,896.06
  6. Step 6: Final answer
    x = 11,649.12

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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.