Home / 8,055.36-12,087.36-3,438.72

Finding the Fourth Proportional to 8,055.36, 12,087.36 and 3,438.72

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Solution

The fourth proportional to 8,055.36, 12,087.36 and 3,438.72 is: 5,159.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.36 : 12,087.36 = 3,438.72 : x
  2. Step 2: Convert to fraction form
    8,055.36/12,087.36 = 3,438.72/x
  3. Step 3: Cross multiply
    8,055.36x = 12,087.36 × 3,438.72
  4. Step 4: Simplify right side
    8,055.36x = 41,565,046.58
  5. Step 5: Solve for x
    x = 41,565,046.58/8,055.36
  6. Step 6: Final answer
    x = 5,159.92

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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.