Home / 8,155.83-11,261.94-5,176.95

Finding the Fourth Proportional to 8,155.83, 11,261.94 and 5,176.95

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Solution

The fourth proportional to 8,155.83, 11,261.94 and 5,176.95 is: 7,148.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.83 : 11,261.94 = 5,176.95 : x
  2. Step 2: Convert to fraction form
    8,155.83/11,261.94 = 5,176.95/x
  3. Step 3: Cross multiply
    8,155.83x = 11,261.94 × 5,176.95
  4. Step 4: Simplify right side
    8,155.83x = 58,302,500.28
  5. Step 5: Solve for x
    x = 58,302,500.28/8,155.83
  6. Step 6: Final answer
    x = 7,148.57

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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.