Home / 18,134.38-27,148.74-13,475.05

Finding the Fourth Proportional to 18,134.38, 27,148.74 and 13,475.05

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Solution

The fourth proportional to 18,134.38, 27,148.74 and 13,475.05 is: 20,173.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.38 : 27,148.74 = 13,475.05 : x
  2. Step 2: Convert to fraction form
    18,134.38/27,148.74 = 13,475.05/x
  3. Step 3: Cross multiply
    18,134.38x = 27,148.74 × 13,475.05
  4. Step 4: Simplify right side
    18,134.38x = 365,830,628.94
  5. Step 5: Solve for x
    x = 365,830,628.94/18,134.38
  6. Step 6: Final answer
    x = 20,173.32

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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.