Home / 8,133.18-12,197.35-3,453.12

Finding the Fourth Proportional to 8,133.18, 12,197.35 and 3,453.12

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Solution

The fourth proportional to 8,133.18, 12,197.35 and 3,453.12 is: 5,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.18 : 12,197.35 = 3,453.12 : x
  2. Step 2: Convert to fraction form
    8,133.18/12,197.35 = 3,453.12/x
  3. Step 3: Cross multiply
    8,133.18x = 12,197.35 × 3,453.12
  4. Step 4: Simplify right side
    8,133.18x = 42,118,913.23
  5. Step 5: Solve for x
    x = 42,118,913.23/8,133.18
  6. Step 6: Final answer
    x = 5,178.65

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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.