Home / 8,515.96-12,775.26-4,353.70

Finding the Fourth Proportional to 8,515.96, 12,775.26 and 4,353.70

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Solution

The fourth proportional to 8,515.96, 12,775.26 and 4,353.70 is: 6,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.96 : 12,775.26 = 4,353.70 : x
  2. Step 2: Convert to fraction form
    8,515.96/12,775.26 = 4,353.70/x
  3. Step 3: Cross multiply
    8,515.96x = 12,775.26 × 4,353.70
  4. Step 4: Simplify right side
    8,515.96x = 55,619,649.46
  5. Step 5: Solve for x
    x = 55,619,649.46/8,515.96
  6. Step 6: Final answer
    x = 6,531.22

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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.