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Finding the Fourth Proportional to 18,465.60, 27,654.28 and 10,650.72

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Solution

The fourth proportional to 18,465.60, 27,654.28 and 10,650.72 is: 15,950.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.60 : 27,654.28 = 10,650.72 : x
  2. Step 2: Convert to fraction form
    18,465.60/27,654.28 = 10,650.72/x
  3. Step 3: Cross multiply
    18,465.60x = 27,654.28 × 10,650.72
  4. Step 4: Simplify right side
    18,465.60x = 294,537,993.08
  5. Step 5: Solve for x
    x = 294,537,993.08/18,465.60
  6. Step 6: Final answer
    x = 15,950.63

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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.