Home / 8,055.45-12,087.58-3,125.28

Finding the Fourth Proportional to 8,055.45, 12,087.58 and 3,125.28

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Solution

The fourth proportional to 8,055.45, 12,087.58 and 3,125.28 is: 4,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.45 : 12,087.58 = 3,125.28 : x
  2. Step 2: Convert to fraction form
    8,055.45/12,087.58 = 3,125.28/x
  3. Step 3: Cross multiply
    8,055.45x = 12,087.58 × 3,125.28
  4. Step 4: Simplify right side
    8,055.45x = 37,777,115.40
  5. Step 5: Solve for x
    x = 37,777,115.40/8,055.45
  6. Step 6: Final answer
    x = 4,689.63

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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.