Home / 18,612.39-25,686.26-10,654.45

Finding the Fourth Proportional to 18,612.39, 25,686.26 and 10,654.45

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Solution

The fourth proportional to 18,612.39, 25,686.26 and 10,654.45 is: 14,703.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.39 : 25,686.26 = 10,654.45 : x
  2. Step 2: Convert to fraction form
    18,612.39/25,686.26 = 10,654.45/x
  3. Step 3: Cross multiply
    18,612.39x = 25,686.26 × 10,654.45
  4. Step 4: Simplify right side
    18,612.39x = 273,672,972.86
  5. Step 5: Solve for x
    x = 273,672,972.86/18,612.39
  6. Step 6: Final answer
    x = 14,703.81

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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.