Home / 10,076.90-15,120.60-4,817.84

Finding the Fourth Proportional to 10,076.90, 15,120.60 and 4,817.84

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Solution

The fourth proportional to 10,076.90, 15,120.60 and 4,817.84 is: 7,229.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,076.90 : 15,120.60 = 4,817.84 : x
  2. Step 2: Convert to fraction form
    10,076.90/15,120.60 = 4,817.84/x
  3. Step 3: Cross multiply
    10,076.90x = 15,120.60 × 4,817.84
  4. Step 4: Simplify right side
    10,076.90x = 72,848,631.50
  5. Step 5: Solve for x
    x = 72,848,631.50/10,076.90
  6. Step 6: Final answer
    x = 7,229.27

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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.