Home / 15,401.08-21,262.98-11,857.48

Finding the Fourth Proportional to 15,401.08, 21,262.98 and 11,857.48

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Solution

The fourth proportional to 15,401.08, 21,262.98 and 11,857.48 is: 16,370.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401.08 : 21,262.98 = 11,857.48 : x
  2. Step 2: Convert to fraction form
    15,401.08/21,262.98 = 11,857.48/x
  3. Step 3: Cross multiply
    15,401.08x = 21,262.98 × 11,857.48
  4. Step 4: Simplify right side
    15,401.08x = 252,125,360.09
  5. Step 5: Solve for x
    x = 252,125,360.09/15,401.08
  6. Step 6: Final answer
    x = 16,370.63

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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.