Home / 8,340.24-12,515.22-3,409.14

Finding the Fourth Proportional to 8,340.24, 12,515.22 and 3,409.14

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Solution

The fourth proportional to 8,340.24, 12,515.22 and 3,409.14 is: 5,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.24 : 12,515.22 = 3,409.14 : x
  2. Step 2: Convert to fraction form
    8,340.24/12,515.22 = 3,409.14/x
  3. Step 3: Cross multiply
    8,340.24x = 12,515.22 × 3,409.14
  4. Step 4: Simplify right side
    8,340.24x = 42,666,137.11
  5. Step 5: Solve for x
    x = 42,666,137.11/8,340.24
  6. Step 6: Final answer
    x = 5,115.70

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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.