Home / 18,126.51-27,200.72-6,438.84

Finding the Fourth Proportional to 18,126.51, 27,200.72 and 6,438.84

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Solution

The fourth proportional to 18,126.51, 27,200.72 and 6,438.84 is: 9,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.51 : 27,200.72 = 6,438.84 : x
  2. Step 2: Convert to fraction form
    18,126.51/27,200.72 = 6,438.84/x
  3. Step 3: Cross multiply
    18,126.51x = 27,200.72 × 6,438.84
  4. Step 4: Simplify right side
    18,126.51x = 175,141,083.96
  5. Step 5: Solve for x
    x = 175,141,083.96/18,126.51
  6. Step 6: Final answer
    x = 9,662.15

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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.