Home / 15,893.12-21,882.32-12,104.16

Finding the Fourth Proportional to 15,893.12, 21,882.32 and 12,104.16

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Solution

The fourth proportional to 15,893.12, 21,882.32 and 12,104.16 is: 16,665.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893.12 : 21,882.32 = 12,104.16 : x
  2. Step 2: Convert to fraction form
    15,893.12/21,882.32 = 12,104.16/x
  3. Step 3: Cross multiply
    15,893.12x = 21,882.32 × 12,104.16
  4. Step 4: Simplify right side
    15,893.12x = 264,867,102.45
  5. Step 5: Solve for x
    x = 264,867,102.45/15,893.12
  6. Step 6: Final answer
    x = 16,665.52

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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.