Home / 12,006.57-18,042.66-7,077.62

Finding the Fourth Proportional to 12,006.57, 18,042.66 and 7,077.62

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Solution

The fourth proportional to 12,006.57, 18,042.66 and 7,077.62 is: 10,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.57 : 18,042.66 = 7,077.62 : x
  2. Step 2: Convert to fraction form
    12,006.57/18,042.66 = 7,077.62/x
  3. Step 3: Cross multiply
    12,006.57x = 18,042.66 × 7,077.62
  4. Step 4: Simplify right side
    12,006.57x = 127,699,136.38
  5. Step 5: Solve for x
    x = 127,699,136.38/12,006.57
  6. Step 6: Final answer
    x = 10,635.77

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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.