Home / 18,334.12-27,515-13,416.44

Finding the Fourth Proportional to 18,334.12, 27,515 and 13,416.44

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Solution

The fourth proportional to 18,334.12, 27,515 and 13,416.44 is: 20,134.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,334.12 : 27,515 = 13,416.44 : x
  2. Step 2: Convert to fraction form
    18,334.12/27,515 = 13,416.44/x
  3. Step 3: Cross multiply
    18,334.12x = 27,515 × 13,416.44
  4. Step 4: Simplify right side
    18,334.12x = 369,153,346.60
  5. Step 5: Solve for x
    x = 369,153,346.60/18,334.12
  6. Step 6: Final answer
    x = 20,134.77

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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.