Home / 19,644.18-27,102.81-11,145.66

Finding the Fourth Proportional to 19,644.18, 27,102.81 and 11,145.66

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Solution

The fourth proportional to 19,644.18, 27,102.81 and 11,145.66 is: 15,377.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,644.18 : 27,102.81 = 11,145.66 : x
  2. Step 2: Convert to fraction form
    19,644.18/27,102.81 = 11,145.66/x
  3. Step 3: Cross multiply
    19,644.18x = 27,102.81 × 11,145.66
  4. Step 4: Simplify right side
    19,644.18x = 302,078,705.30
  5. Step 5: Solve for x
    x = 302,078,705.30/19,644.18
  6. Step 6: Final answer
    x = 15,377.52

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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.