Home / 18,114.40-27,176.73-6,428.80

Finding the Fourth Proportional to 18,114.40, 27,176.73 and 6,428.80

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Solution

The fourth proportional to 18,114.40, 27,176.73 and 6,428.80 is: 9,645.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,114.40 : 27,176.73 = 6,428.80 : x
  2. Step 2: Convert to fraction form
    18,114.40/27,176.73 = 6,428.80/x
  3. Step 3: Cross multiply
    18,114.40x = 27,176.73 × 6,428.80
  4. Step 4: Simplify right side
    18,114.40x = 174,713,761.82
  5. Step 5: Solve for x
    x = 174,713,761.82/18,114.40
  6. Step 6: Final answer
    x = 9,645.02

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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.