Home / 15,204.12-21,001.92-12,231.16

Finding the Fourth Proportional to 15,204.12, 21,001.92 and 12,231.16

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Solution

The fourth proportional to 15,204.12, 21,001.92 and 12,231.16 is: 16,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,204.12 : 21,001.92 = 12,231.16 : x
  2. Step 2: Convert to fraction form
    15,204.12/21,001.92 = 12,231.16/x
  3. Step 3: Cross multiply
    15,204.12x = 21,001.92 × 12,231.16
  4. Step 4: Simplify right side
    15,204.12x = 256,877,843.83
  5. Step 5: Solve for x
    x = 256,877,843.83/15,204.12
  6. Step 6: Final answer
    x = 16,895.28

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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.