Home / 13,855.56-20,783.70-5,084.76

Finding the Fourth Proportional to 13,855.56, 20,783.70 and 5,084.76

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Solution

The fourth proportional to 13,855.56, 20,783.70 and 5,084.76 is: 7,627.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.56 : 20,783.70 = 5,084.76 : x
  2. Step 2: Convert to fraction form
    13,855.56/20,783.70 = 5,084.76/x
  3. Step 3: Cross multiply
    13,855.56x = 20,783.70 × 5,084.76
  4. Step 4: Simplify right side
    13,855.56x = 105,680,126.41
  5. Step 5: Solve for x
    x = 105,680,126.41/13,855.56
  6. Step 6: Final answer
    x = 7,627.27

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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.