Home / 8,419.50-12,631.07-3,225.38

Finding the Fourth Proportional to 8,419.50, 12,631.07 and 3,225.38

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Solution

The fourth proportional to 8,419.50, 12,631.07 and 3,225.38 is: 4,838.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.50 : 12,631.07 = 3,225.38 : x
  2. Step 2: Convert to fraction form
    8,419.50/12,631.07 = 3,225.38/x
  3. Step 3: Cross multiply
    8,419.50x = 12,631.07 × 3,225.38
  4. Step 4: Simplify right side
    8,419.50x = 40,739,945.46
  5. Step 5: Solve for x
    x = 40,739,945.46/8,419.50
  6. Step 6: Final answer
    x = 4,838.76

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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.