Home / 8,435.72-11,641.20-4,659.04

Finding the Fourth Proportional to 8,435.72, 11,641.20 and 4,659.04

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Solution

The fourth proportional to 8,435.72, 11,641.20 and 4,659.04 is: 6,429.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.72 : 11,641.20 = 4,659.04 : x
  2. Step 2: Convert to fraction form
    8,435.72/11,641.20 = 4,659.04/x
  3. Step 3: Cross multiply
    8,435.72x = 11,641.20 × 4,659.04
  4. Step 4: Simplify right side
    8,435.72x = 54,236,813.53
  5. Step 5: Solve for x
    x = 54,236,813.53/8,435.72
  6. Step 6: Final answer
    x = 6,429.42

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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.