Home / 7,763.40-11,636.42-5,100.12

Finding the Fourth Proportional to 7,763.40, 11,636.42 and 5,100.12

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Solution

The fourth proportional to 7,763.40, 11,636.42 and 5,100.12 is: 7,644.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.40 : 11,636.42 = 5,100.12 : x
  2. Step 2: Convert to fraction form
    7,763.40/11,636.42 = 5,100.12/x
  3. Step 3: Cross multiply
    7,763.40x = 11,636.42 × 5,100.12
  4. Step 4: Simplify right side
    7,763.40x = 59,347,112.87
  5. Step 5: Solve for x
    x = 59,347,112.87/7,763.40
  6. Step 6: Final answer
    x = 7,644.47

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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.