Home / 8,685.50-13,028.86-4,301.78

Finding the Fourth Proportional to 8,685.50, 13,028.86 and 4,301.78

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Solution

The fourth proportional to 8,685.50, 13,028.86 and 4,301.78 is: 6,452.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.50 : 13,028.86 = 4,301.78 : x
  2. Step 2: Convert to fraction form
    8,685.50/13,028.86 = 4,301.78/x
  3. Step 3: Cross multiply
    8,685.50x = 13,028.86 × 4,301.78
  4. Step 4: Simplify right side
    8,685.50x = 56,047,289.37
  5. Step 5: Solve for x
    x = 56,047,289.37/8,685.50
  6. Step 6: Final answer
    x = 6,452.97

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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.