Home / 18,087.63-27,142.98-7,699.38

Finding the Fourth Proportional to 18,087.63, 27,142.98 and 7,699.38

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Solution

The fourth proportional to 18,087.63, 27,142.98 and 7,699.38 is: 11,553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.63 : 27,142.98 = 7,699.38 : x
  2. Step 2: Convert to fraction form
    18,087.63/27,142.98 = 7,699.38/x
  3. Step 3: Cross multiply
    18,087.63x = 27,142.98 × 7,699.38
  4. Step 4: Simplify right side
    18,087.63x = 208,984,117.35
  5. Step 5: Solve for x
    x = 208,984,117.35/18,087.63
  6. Step 6: Final answer
    x = 11,553.98

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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.