Home / 12,740.12-19,095.60-4,942.25

Finding the Fourth Proportional to 12,740.12, 19,095.60 and 4,942.25

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Solution

The fourth proportional to 12,740.12, 19,095.60 and 4,942.25 is: 7,407.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.12 : 19,095.60 = 4,942.25 : x
  2. Step 2: Convert to fraction form
    12,740.12/19,095.60 = 4,942.25/x
  3. Step 3: Cross multiply
    12,740.12x = 19,095.60 × 4,942.25
  4. Step 4: Simplify right side
    12,740.12x = 94,375,229.10
  5. Step 5: Solve for x
    x = 94,375,229.10/12,740.12
  6. Step 6: Final answer
    x = 7,407.72

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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.