Home / 11,012.65-15,187.41-7,234.30

Finding the Fourth Proportional to 11,012.65, 15,187.41 and 7,234.30

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Solution

The fourth proportional to 11,012.65, 15,187.41 and 7,234.30 is: 9,976.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,012.65 : 15,187.41 = 7,234.30 : x
  2. Step 2: Convert to fraction form
    11,012.65/15,187.41 = 7,234.30/x
  3. Step 3: Cross multiply
    11,012.65x = 15,187.41 × 7,234.30
  4. Step 4: Simplify right side
    11,012.65x = 109,870,280.16
  5. Step 5: Solve for x
    x = 109,870,280.16/11,012.65
  6. Step 6: Final answer
    x = 9,976.73

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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.