Home / 18,631.46-27,947.21-4,780.46

Finding the Fourth Proportional to 18,631.46, 27,947.21 and 4,780.46

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Solution

The fourth proportional to 18,631.46, 27,947.21 and 4,780.46 is: 7,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.46 : 27,947.21 = 4,780.46 : x
  2. Step 2: Convert to fraction form
    18,631.46/27,947.21 = 4,780.46/x
  3. Step 3: Cross multiply
    18,631.46x = 27,947.21 × 4,780.46
  4. Step 4: Simplify right side
    18,631.46x = 133,600,519.52
  5. Step 5: Solve for x
    x = 133,600,519.52/18,631.46
  6. Step 6: Final answer
    x = 7,170.70

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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.