Home / 8,335.40-12,504.86-3,141.32

Finding the Fourth Proportional to 8,335.40, 12,504.86 and 3,141.32

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Solution

The fourth proportional to 8,335.40, 12,504.86 and 3,141.32 is: 4,712.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.40 : 12,504.86 = 3,141.32 : x
  2. Step 2: Convert to fraction form
    8,335.40/12,504.86 = 3,141.32/x
  3. Step 3: Cross multiply
    8,335.40x = 12,504.86 × 3,141.32
  4. Step 4: Simplify right side
    8,335.40x = 39,281,766.82
  5. Step 5: Solve for x
    x = 39,281,766.82/8,335.40
  6. Step 6: Final answer
    x = 4,712.64

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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.