Home / 18,631.30-25,714.84-10,678.85

Finding the Fourth Proportional to 18,631.30, 25,714.84 and 10,678.85

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Solution

The fourth proportional to 18,631.30, 25,714.84 and 10,678.85 is: 14,738.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.30 : 25,714.84 = 10,678.85 : x
  2. Step 2: Convert to fraction form
    18,631.30/25,714.84 = 10,678.85/x
  3. Step 3: Cross multiply
    18,631.30x = 25,714.84 × 10,678.85
  4. Step 4: Simplify right side
    18,631.30x = 274,604,919.13
  5. Step 5: Solve for x
    x = 274,604,919.13/18,631.30
  6. Step 6: Final answer
    x = 14,738.91

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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.