Home / 7,176.65-10,745.81-4,212.64

Finding the Fourth Proportional to 7,176.65, 10,745.81 and 4,212.64

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Solution

The fourth proportional to 7,176.65, 10,745.81 and 4,212.64 is: 6,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.65 : 10,745.81 = 4,212.64 : x
  2. Step 2: Convert to fraction form
    7,176.65/10,745.81 = 4,212.64/x
  3. Step 3: Cross multiply
    7,176.65x = 10,745.81 × 4,212.64
  4. Step 4: Simplify right side
    7,176.65x = 45,268,154.25
  5. Step 5: Solve for x
    x = 45,268,154.25/7,176.65
  6. Step 6: Final answer
    x = 6,307.70

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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.