Home / 7,686.02-11,521.82-4,170.87

Finding the Fourth Proportional to 7,686.02, 11,521.82 and 4,170.87

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Solution

The fourth proportional to 7,686.02, 11,521.82 and 4,170.87 is: 6,252.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.02 : 11,521.82 = 4,170.87 : x
  2. Step 2: Convert to fraction form
    7,686.02/11,521.82 = 4,170.87/x
  3. Step 3: Cross multiply
    7,686.02x = 11,521.82 × 4,170.87
  4. Step 4: Simplify right side
    7,686.02x = 48,055,992.53
  5. Step 5: Solve for x
    x = 48,055,992.53/7,686.02
  6. Step 6: Final answer
    x = 6,252.39

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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.