Home / 18,363.30-27,553.56-12,749.58

Finding the Fourth Proportional to 18,363.30, 27,553.56 and 12,749.58

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Solution

The fourth proportional to 18,363.30, 27,553.56 and 12,749.58 is: 19,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.30 : 27,553.56 = 12,749.58 : x
  2. Step 2: Convert to fraction form
    18,363.30/27,553.56 = 12,749.58/x
  3. Step 3: Cross multiply
    18,363.30x = 27,553.56 × 12,749.58
  4. Step 4: Simplify right side
    18,363.30x = 351,296,317.50
  5. Step 5: Solve for x
    x = 351,296,317.50/18,363.30
  6. Step 6: Final answer
    x = 19,130.35

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1.5x scale

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.