Home / 18,274.32-25,215.18-11,102.76

Finding the Fourth Proportional to 18,274.32, 25,215.18 and 11,102.76

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Solution

The fourth proportional to 18,274.32, 25,215.18 and 11,102.76 is: 15,319.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.32 : 25,215.18 = 11,102.76 : x
  2. Step 2: Convert to fraction form
    18,274.32/25,215.18 = 11,102.76/x
  3. Step 3: Cross multiply
    18,274.32x = 25,215.18 × 11,102.76
  4. Step 4: Simplify right side
    18,274.32x = 279,958,091.90
  5. Step 5: Solve for x
    x = 279,958,091.90/18,274.32
  6. Step 6: Final answer
    x = 15,319.75

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Half scale
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Double scale
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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.