Home / 11,616.30-17,407.80-7,231.20

Finding the Fourth Proportional to 11,616.30, 17,407.80 and 7,231.20

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Solution

The fourth proportional to 11,616.30, 17,407.80 and 7,231.20 is: 10,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,616.30 : 17,407.80 = 7,231.20 : x
  2. Step 2: Convert to fraction form
    11,616.30/17,407.80 = 7,231.20/x
  3. Step 3: Cross multiply
    11,616.30x = 17,407.80 × 7,231.20
  4. Step 4: Simplify right side
    11,616.30x = 125,879,283.36
  5. Step 5: Solve for x
    x = 125,879,283.36/11,616.30
  6. Step 6: Final answer
    x = 10,836.44

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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.