Home / 12,052.80-16,630.40-6,747.20

Finding the Fourth Proportional to 12,052.80, 16,630.40 and 6,747.20

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Solution

The fourth proportional to 12,052.80, 16,630.40 and 6,747.20 is: 9,309.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,052.80 : 16,630.40 = 6,747.20 : x
  2. Step 2: Convert to fraction form
    12,052.80/16,630.40 = 6,747.20/x
  3. Step 3: Cross multiply
    12,052.80x = 16,630.40 × 6,747.20
  4. Step 4: Simplify right side
    12,052.80x = 112,208,634.88
  5. Step 5: Solve for x
    x = 112,208,634.88/12,052.80
  6. Step 6: Final answer
    x = 9,309.76

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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.