Home / 18,087.58-27,127.71-4,938.85

Finding the Fourth Proportional to 18,087.58, 27,127.71 and 4,938.85

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Solution

The fourth proportional to 18,087.58, 27,127.71 and 4,938.85 is: 7,407.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.58 : 27,127.71 = 4,938.85 : x
  2. Step 2: Convert to fraction form
    18,087.58/27,127.71 = 4,938.85/x
  3. Step 3: Cross multiply
    18,087.58x = 27,127.71 × 4,938.85
  4. Step 4: Simplify right side
    18,087.58x = 133,979,690.53
  5. Step 5: Solve for x
    x = 133,979,690.53/18,087.58
  6. Step 6: Final answer
    x = 7,407.28

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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.