Home / 12,013.11-16,578.68-6,707.81

Finding the Fourth Proportional to 12,013.11, 16,578.68 and 6,707.81

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Solution

The fourth proportional to 12,013.11, 16,578.68 and 6,707.81 is: 9,257.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.11 : 16,578.68 = 6,707.81 : x
  2. Step 2: Convert to fraction form
    12,013.11/16,578.68 = 6,707.81/x
  3. Step 3: Cross multiply
    12,013.11x = 16,578.68 × 6,707.81
  4. Step 4: Simplify right side
    12,013.11x = 111,206,643.40
  5. Step 5: Solve for x
    x = 111,206,643.40/12,013.11
  6. Step 6: Final answer
    x = 9,257.11

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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.