Home / 10,020.64-15,040.08-5,344.60

Finding the Fourth Proportional to 10,020.64, 15,040.08 and 5,344.60

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Solution

The fourth proportional to 10,020.64, 15,040.08 and 5,344.60 is: 8,021.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020.64 : 15,040.08 = 5,344.60 : x
  2. Step 2: Convert to fraction form
    10,020.64/15,040.08 = 5,344.60/x
  3. Step 3: Cross multiply
    10,020.64x = 15,040.08 × 5,344.60
  4. Step 4: Simplify right side
    10,020.64x = 80,383,211.57
  5. Step 5: Solve for x
    x = 80,383,211.57/10,020.64
  6. Step 6: Final answer
    x = 8,021.76

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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.