Home / 7,485.41-11,228.12-4,155.71

Finding the Fourth Proportional to 7,485.41, 11,228.12 and 4,155.71

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Solution

The fourth proportional to 7,485.41, 11,228.12 and 4,155.71 is: 6,233.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.41 : 11,228.12 = 4,155.71 : x
  2. Step 2: Convert to fraction form
    7,485.41/11,228.12 = 4,155.71/x
  3. Step 3: Cross multiply
    7,485.41x = 11,228.12 × 4,155.71
  4. Step 4: Simplify right side
    7,485.41x = 46,660,733.65
  5. Step 5: Solve for x
    x = 46,660,733.65/7,485.41
  6. Step 6: Final answer
    x = 6,233.56

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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.