Home / 8,548.12-11,790.66-6,429.16

Finding the Fourth Proportional to 8,548.12, 11,790.66 and 6,429.16

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Solution

The fourth proportional to 8,548.12, 11,790.66 and 6,429.16 is: 8,867.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,548.12 : 11,790.66 = 6,429.16 : x
  2. Step 2: Convert to fraction form
    8,548.12/11,790.66 = 6,429.16/x
  3. Step 3: Cross multiply
    8,548.12x = 11,790.66 × 6,429.16
  4. Step 4: Simplify right side
    8,548.12x = 75,804,039.65
  5. Step 5: Solve for x
    x = 75,804,039.65/8,548.12
  6. Step 6: Final answer
    x = 8,867.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.