Home / 18,156.40-27,228.47-6,909.07

Finding the Fourth Proportional to 18,156.40, 27,228.47 and 6,909.07

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Solution

The fourth proportional to 18,156.40, 27,228.47 and 6,909.07 is: 10,361.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.40 : 27,228.47 = 6,909.07 : x
  2. Step 2: Convert to fraction form
    18,156.40/27,228.47 = 6,909.07/x
  3. Step 3: Cross multiply
    18,156.40x = 27,228.47 × 6,909.07
  4. Step 4: Simplify right side
    18,156.40x = 188,123,360.90
  5. Step 5: Solve for x
    x = 188,123,360.90/18,156.40
  6. Step 6: Final answer
    x = 10,361.27

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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.