Home / 9,172.72-12,658.37-4,980.97

Finding the Fourth Proportional to 9,172.72, 12,658.37 and 4,980.97

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Solution

The fourth proportional to 9,172.72, 12,658.37 and 4,980.97 is: 6,873.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.72 : 12,658.37 = 4,980.97 : x
  2. Step 2: Convert to fraction form
    9,172.72/12,658.37 = 4,980.97/x
  3. Step 3: Cross multiply
    9,172.72x = 12,658.37 × 4,980.97
  4. Step 4: Simplify right side
    9,172.72x = 63,050,961.22
  5. Step 5: Solve for x
    x = 63,050,961.22/9,172.72
  6. Step 6: Final answer
    x = 6,873.75

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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.