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Finding the Fourth Proportional to 18,357.84, 25,333.29 and 10,400.76

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Solution

The fourth proportional to 18,357.84, 25,333.29 and 10,400.76 is: 14,352.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.84 : 25,333.29 = 10,400.76 : x
  2. Step 2: Convert to fraction form
    18,357.84/25,333.29 = 10,400.76/x
  3. Step 3: Cross multiply
    18,357.84x = 25,333.29 × 10,400.76
  4. Step 4: Simplify right side
    18,357.84x = 263,485,469.30
  5. Step 5: Solve for x
    x = 263,485,469.30/18,357.84
  6. Step 6: Final answer
    x = 14,352.75

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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.