Home / 21,226.19-29,290.72-11,665.88

Finding the Fourth Proportional to 21,226.19, 29,290.72 and 11,665.88

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Solution

The fourth proportional to 21,226.19, 29,290.72 and 11,665.88 is: 16,098.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,226.19 : 29,290.72 = 11,665.88 : x
  2. Step 2: Convert to fraction form
    21,226.19/29,290.72 = 11,665.88/x
  3. Step 3: Cross multiply
    21,226.19x = 29,290.72 × 11,665.88
  4. Step 4: Simplify right side
    21,226.19x = 341,701,849.02
  5. Step 5: Solve for x
    x = 341,701,849.02/21,226.19
  6. Step 6: Final answer
    x = 16,098.12

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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.