Home / 8,539.20-12,810.60-3,606.30

Finding the Fourth Proportional to 8,539.20, 12,810.60 and 3,606.30

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Solution

The fourth proportional to 8,539.20, 12,810.60 and 3,606.30 is: 5,410.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.20 : 12,810.60 = 3,606.30 : x
  2. Step 2: Convert to fraction form
    8,539.20/12,810.60 = 3,606.30/x
  3. Step 3: Cross multiply
    8,539.20x = 12,810.60 × 3,606.30
  4. Step 4: Simplify right side
    8,539.20x = 46,198,866.78
  5. Step 5: Solve for x
    x = 46,198,866.78/8,539.20
  6. Step 6: Final answer
    x = 5,410.21

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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.