Home / 18,631.05-25,714.50-10,678.60

Finding the Fourth Proportional to 18,631.05, 25,714.50 and 10,678.60

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Solution

The fourth proportional to 18,631.05, 25,714.50 and 10,678.60 is: 14,738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.05 : 25,714.50 = 10,678.60 : x
  2. Step 2: Convert to fraction form
    18,631.05/25,714.50 = 10,678.60/x
  3. Step 3: Cross multiply
    18,631.05x = 25,714.50 × 10,678.60
  4. Step 4: Simplify right side
    18,631.05x = 274,594,806.31
  5. Step 5: Solve for x
    x = 274,594,806.31/18,631.05
  6. Step 6: Final answer
    x = 14,738.56

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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.