Home / 15,233.20-21,022.28-8,518.64

Finding the Fourth Proportional to 15,233.20, 21,022.28 and 8,518.64

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Solution

The fourth proportional to 15,233.20, 21,022.28 and 8,518.64 is: 11,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,233.20 : 21,022.28 = 8,518.64 : x
  2. Step 2: Convert to fraction form
    15,233.20/21,022.28 = 8,518.64/x
  3. Step 3: Cross multiply
    15,233.20x = 21,022.28 × 8,518.64
  4. Step 4: Simplify right side
    15,233.20x = 179,081,235.30
  5. Step 5: Solve for x
    x = 179,081,235.30/15,233.20
  6. Step 6: Final answer
    x = 11,755.98

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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.