Home / 21,394.38-29,525.16-11,962.86

Finding the Fourth Proportional to 21,394.38, 29,525.16 and 11,962.86

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Solution

The fourth proportional to 21,394.38, 29,525.16 and 11,962.86 is: 16,509.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,394.38 : 29,525.16 = 11,962.86 : x
  2. Step 2: Convert to fraction form
    21,394.38/29,525.16 = 11,962.86/x
  3. Step 3: Cross multiply
    21,394.38x = 29,525.16 × 11,962.86
  4. Step 4: Simplify right side
    21,394.38x = 353,205,355.56
  5. Step 5: Solve for x
    x = 353,205,355.56/21,394.38
  6. Step 6: Final answer
    x = 16,509.26

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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.