Home / 21,186.38-29,237.18-11,626.32

Finding the Fourth Proportional to 21,186.38, 29,237.18 and 11,626.32

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Solution

The fourth proportional to 21,186.38, 29,237.18 and 11,626.32 is: 16,044.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.38 : 29,237.18 = 11,626.32 : x
  2. Step 2: Convert to fraction form
    21,186.38/29,237.18 = 11,626.32/x
  3. Step 3: Cross multiply
    21,186.38x = 29,237.18 × 11,626.32
  4. Step 4: Simplify right side
    21,186.38x = 339,920,752.45
  5. Step 5: Solve for x
    x = 339,920,752.45/21,186.38
  6. Step 6: Final answer
    x = 16,044.31

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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.