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Finding the Fourth Proportional to 18,863.34, 28,258.02 and 10,949.24

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Solution

The fourth proportional to 18,863.34, 28,258.02 and 10,949.24 is: 16,402.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.34 : 28,258.02 = 10,949.24 : x
  2. Step 2: Convert to fraction form
    18,863.34/28,258.02 = 10,949.24/x
  3. Step 3: Cross multiply
    18,863.34x = 28,258.02 × 10,949.24
  4. Step 4: Simplify right side
    18,863.34x = 309,403,701.61
  5. Step 5: Solve for x
    x = 309,403,701.61/18,863.34
  6. Step 6: Final answer
    x = 16,402.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.