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Finding the Fourth Proportional to 18,080.50, 24,953.58 and 10,910.78

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Solution

The fourth proportional to 18,080.50, 24,953.58 and 10,910.78 is: 15,058.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,080.50 : 24,953.58 = 10,910.78 : x
  2. Step 2: Convert to fraction form
    18,080.50/24,953.58 = 10,910.78/x
  3. Step 3: Cross multiply
    18,080.50x = 24,953.58 × 10,910.78
  4. Step 4: Simplify right side
    18,080.50x = 272,263,021.59
  5. Step 5: Solve for x
    x = 272,263,021.59/18,080.50
  6. Step 6: Final answer
    x = 15,058.38

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Half scale
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Double scale
Find fourth proportional to 18,081.50, 24,954.96 and 10,911.78
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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.