Home / 11,238.80-16,833.90-7,302.20

Finding the Fourth Proportional to 11,238.80, 16,833.90 and 7,302.20

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Solution

The fourth proportional to 11,238.80, 16,833.90 and 7,302.20 is: 10,937.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.80 : 16,833.90 = 7,302.20 : x
  2. Step 2: Convert to fraction form
    11,238.80/16,833.90 = 7,302.20/x
  3. Step 3: Cross multiply
    11,238.80x = 16,833.90 × 7,302.20
  4. Step 4: Simplify right side
    11,238.80x = 122,924,504.58
  5. Step 5: Solve for x
    x = 122,924,504.58/11,238.80
  6. Step 6: Final answer
    x = 10,937.51

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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.