Home / 8,340.32-12,510.22-3,408.68

Finding the Fourth Proportional to 8,340.32, 12,510.22 and 3,408.68

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Solution

The fourth proportional to 8,340.32, 12,510.22 and 3,408.68 is: 5,112.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.32 : 12,510.22 = 3,408.68 : x
  2. Step 2: Convert to fraction form
    8,340.32/12,510.22 = 3,408.68/x
  3. Step 3: Cross multiply
    8,340.32x = 12,510.22 × 3,408.68
  4. Step 4: Simplify right side
    8,340.32x = 42,643,336.71
  5. Step 5: Solve for x
    x = 42,643,336.71/8,340.32
  6. Step 6: Final answer
    x = 5,112.91

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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.