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Finding the Fourth Proportional to 7,894.70, 10,894.92 and 4,358.14

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Solution

The fourth proportional to 7,894.70, 10,894.92 and 4,358.14 is: 6,014.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,894.70 : 10,894.92 = 4,358.14 : x
  2. Step 2: Convert to fraction form
    7,894.70/10,894.92 = 4,358.14/x
  3. Step 3: Cross multiply
    7,894.70x = 10,894.92 × 4,358.14
  4. Step 4: Simplify right side
    7,894.70x = 47,481,586.65
  5. Step 5: Solve for x
    x = 47,481,586.65/7,894.70
  6. Step 6: Final answer
    x = 6,014.36

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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.