Home / 18,006.87-27,010.09-4,678.69

Finding the Fourth Proportional to 18,006.87, 27,010.09 and 4,678.69

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Solution

The fourth proportional to 18,006.87, 27,010.09 and 4,678.69 is: 7,017.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,006.87 : 27,010.09 = 4,678.69 : x
  2. Step 2: Convert to fraction form
    18,006.87/27,010.09 = 4,678.69/x
  3. Step 3: Cross multiply
    18,006.87x = 27,010.09 × 4,678.69
  4. Step 4: Simplify right side
    18,006.87x = 126,371,835.72
  5. Step 5: Solve for x
    x = 126,371,835.72/18,006.87
  6. Step 6: Final answer
    x = 7,017.98

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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.