Home / 15,442.97-21,311.25-8,369.39

Finding the Fourth Proportional to 15,442.97, 21,311.25 and 8,369.39

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Solution

The fourth proportional to 15,442.97, 21,311.25 and 8,369.39 is: 11,549.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.97 : 21,311.25 = 8,369.39 : x
  2. Step 2: Convert to fraction form
    15,442.97/21,311.25 = 8,369.39/x
  3. Step 3: Cross multiply
    15,442.97x = 21,311.25 × 8,369.39
  4. Step 4: Simplify right side
    15,442.97x = 178,362,162.64
  5. Step 5: Solve for x
    x = 178,362,162.64/15,442.97
  6. Step 6: Final answer
    x = 11,549.73

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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.