Home / 8,428.11-11,611.80-5,873.46

Finding the Fourth Proportional to 8,428.11, 11,611.80 and 5,873.46

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Solution

The fourth proportional to 8,428.11, 11,611.80 and 5,873.46 is: 8,092.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.11 : 11,611.80 = 5,873.46 : x
  2. Step 2: Convert to fraction form
    8,428.11/11,611.80 = 5,873.46/x
  3. Step 3: Cross multiply
    8,428.11x = 11,611.80 × 5,873.46
  4. Step 4: Simplify right side
    8,428.11x = 68,201,442.83
  5. Step 5: Solve for x
    x = 68,201,442.83/8,428.11
  6. Step 6: Final answer
    x = 8,092.14

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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.