Home / 8,228.79-11,355.42-4,691.32

Finding the Fourth Proportional to 8,228.79, 11,355.42 and 4,691.32

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Solution

The fourth proportional to 8,228.79, 11,355.42 and 4,691.32 is: 6,473.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.79 : 11,355.42 = 4,691.32 : x
  2. Step 2: Convert to fraction form
    8,228.79/11,355.42 = 4,691.32/x
  3. Step 3: Cross multiply
    8,228.79x = 11,355.42 × 4,691.32
  4. Step 4: Simplify right side
    8,228.79x = 53,271,908.95
  5. Step 5: Solve for x
    x = 53,271,908.95/8,228.79
  6. Step 6: Final answer
    x = 6,473.84

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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.