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Finding the Fourth Proportional to 7,946.69, 11,920.11 and 2,400.08

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Solution

The fourth proportional to 7,946.69, 11,920.11 and 2,400.08 is: 3,600.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.69 : 11,920.11 = 2,400.08 : x
  2. Step 2: Convert to fraction form
    7,946.69/11,920.11 = 2,400.08/x
  3. Step 3: Cross multiply
    7,946.69x = 11,920.11 × 2,400.08
  4. Step 4: Simplify right side
    7,946.69x = 28,609,217.61
  5. Step 5: Solve for x
    x = 28,609,217.61/7,946.69
  6. Step 6: Final answer
    x = 3,600.14

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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.