Home / 8,347.20-12,513.24-3,151.68

Finding the Fourth Proportional to 8,347.20, 12,513.24 and 3,151.68

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Solution

The fourth proportional to 8,347.20, 12,513.24 and 3,151.68 is: 4,724.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.20 : 12,513.24 = 3,151.68 : x
  2. Step 2: Convert to fraction form
    8,347.20/12,513.24 = 3,151.68/x
  3. Step 3: Cross multiply
    8,347.20x = 12,513.24 × 3,151.68
  4. Step 4: Simplify right side
    8,347.20x = 39,437,728.24
  5. Step 5: Solve for x
    x = 39,437,728.24/8,347.20
  6. Step 6: Final answer
    x = 4,724.67

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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.