Home / 21,184.12-29,235.09-11,752.75

Finding the Fourth Proportional to 21,184.12, 29,235.09 and 11,752.75

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Solution

The fourth proportional to 21,184.12, 29,235.09 and 11,752.75 is: 16,219.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.12 : 29,235.09 = 11,752.75 : x
  2. Step 2: Convert to fraction form
    21,184.12/29,235.09 = 11,752.75/x
  3. Step 3: Cross multiply
    21,184.12x = 29,235.09 × 11,752.75
  4. Step 4: Simplify right side
    21,184.12x = 343,592,704.00
  5. Step 5: Solve for x
    x = 343,592,704.00/21,184.12
  6. Step 6: Final answer
    x = 16,219.35

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Double scale
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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.