Home / 8,268.12-12,390.36-6,607.30

Finding the Fourth Proportional to 8,268.12, 12,390.36 and 6,607.30

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Solution

The fourth proportional to 8,268.12, 12,390.36 and 6,607.30 is: 9,901.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,268.12 : 12,390.36 = 6,607.30 : x
  2. Step 2: Convert to fraction form
    8,268.12/12,390.36 = 6,607.30/x
  3. Step 3: Cross multiply
    8,268.12x = 12,390.36 × 6,607.30
  4. Step 4: Simplify right side
    8,268.12x = 81,866,794.65
  5. Step 5: Solve for x
    x = 81,866,794.65/8,268.12
  6. Step 6: Final answer
    x = 9,901.50

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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.