Home / 7,686.10-11,521.44-2,999.66

Finding the Fourth Proportional to 7,686.10, 11,521.44 and 2,999.66

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Solution

The fourth proportional to 7,686.10, 11,521.44 and 2,999.66 is: 4,496.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.10 : 11,521.44 = 2,999.66 : x
  2. Step 2: Convert to fraction form
    7,686.10/11,521.44 = 2,999.66/x
  3. Step 3: Cross multiply
    7,686.10x = 11,521.44 × 2,999.66
  4. Step 4: Simplify right side
    7,686.10x = 34,560,345.10
  5. Step 5: Solve for x
    x = 34,560,345.10/7,686.10
  6. Step 6: Final answer
    x = 4,496.48

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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.