Home / 8,103.93-12,155.55-2,561.25

Finding the Fourth Proportional to 8,103.93, 12,155.55 and 2,561.25

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Solution

The fourth proportional to 8,103.93, 12,155.55 and 2,561.25 is: 3,841.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.93 : 12,155.55 = 2,561.25 : x
  2. Step 2: Convert to fraction form
    8,103.93/12,155.55 = 2,561.25/x
  3. Step 3: Cross multiply
    8,103.93x = 12,155.55 × 2,561.25
  4. Step 4: Simplify right side
    8,103.93x = 31,133,402.44
  5. Step 5: Solve for x
    x = 31,133,402.44/8,103.93
  6. Step 6: Final answer
    x = 3,841.77

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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.