Home / 8,340.06-12,510.08-3,408.60

Finding the Fourth Proportional to 8,340.06, 12,510.08 and 3,408.60

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Solution

The fourth proportional to 8,340.06, 12,510.08 and 3,408.60 is: 5,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.06 : 12,510.08 = 3,408.60 : x
  2. Step 2: Convert to fraction form
    8,340.06/12,510.08 = 3,408.60/x
  3. Step 3: Cross multiply
    8,340.06x = 12,510.08 × 3,408.60
  4. Step 4: Simplify right side
    8,340.06x = 42,641,858.69
  5. Step 5: Solve for x
    x = 42,641,858.69/8,340.06
  6. Step 6: Final answer
    x = 5,112.90

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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.