Home / 12,013.80-16,578.18-6,708.57

Finding the Fourth Proportional to 12,013.80, 16,578.18 and 6,708.57

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Solution

The fourth proportional to 12,013.80, 16,578.18 and 6,708.57 is: 9,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.80 : 16,578.18 = 6,708.57 : x
  2. Step 2: Convert to fraction form
    12,013.80/16,578.18 = 6,708.57/x
  3. Step 3: Cross multiply
    12,013.80x = 16,578.18 × 6,708.57
  4. Step 4: Simplify right side
    12,013.80x = 111,215,881.00
  5. Step 5: Solve for x
    x = 111,215,881.00/12,013.80
  6. Step 6: Final answer
    x = 9,257.34

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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.