Home / 18,225.22-27,337.82-13,140.44

Finding the Fourth Proportional to 18,225.22, 27,337.82 and 13,140.44

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Solution

The fourth proportional to 18,225.22, 27,337.82 and 13,140.44 is: 19,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.22 : 27,337.82 = 13,140.44 : x
  2. Step 2: Convert to fraction form
    18,225.22/27,337.82 = 13,140.44/x
  3. Step 3: Cross multiply
    18,225.22x = 27,337.82 × 13,140.44
  4. Step 4: Simplify right side
    18,225.22x = 359,230,983.44
  5. Step 5: Solve for x
    x = 359,230,983.44/18,225.22
  6. Step 6: Final answer
    x = 19,710.65

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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.