Home / 12,006.86-16,570.43-6,629.78

Finding the Fourth Proportional to 12,006.86, 16,570.43 and 6,629.78

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Solution

The fourth proportional to 12,006.86, 16,570.43 and 6,629.78 is: 9,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.86 : 16,570.43 = 6,629.78 : x
  2. Step 2: Convert to fraction form
    12,006.86/16,570.43 = 6,629.78/x
  3. Step 3: Cross multiply
    12,006.86x = 16,570.43 × 6,629.78
  4. Step 4: Simplify right side
    12,006.86x = 109,858,189.40
  5. Step 5: Solve for x
    x = 109,858,189.40/12,006.86
  6. Step 6: Final answer
    x = 9,149.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.