Home / 15,370.20-21,203.10-11,832.12

Finding the Fourth Proportional to 15,370.20, 21,203.10 and 11,832.12

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Solution

The fourth proportional to 15,370.20, 21,203.10 and 11,832.12 is: 16,322.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.20 : 21,203.10 = 11,832.12 : x
  2. Step 2: Convert to fraction form
    15,370.20/21,203.10 = 11,832.12/x
  3. Step 3: Cross multiply
    15,370.20x = 21,203.10 × 11,832.12
  4. Step 4: Simplify right side
    15,370.20x = 250,877,623.57
  5. Step 5: Solve for x
    x = 250,877,623.57/15,370.20
  6. Step 6: Final answer
    x = 16,322.34

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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.