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Finding the Fourth Proportional to 7,015.54, 10,525.74 and 3,122.68

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Solution

The fourth proportional to 7,015.54, 10,525.74 and 3,122.68 is: 4,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.54 : 10,525.74 = 3,122.68 : x
  2. Step 2: Convert to fraction form
    7,015.54/10,525.74 = 3,122.68/x
  3. Step 3: Cross multiply
    7,015.54x = 10,525.74 × 3,122.68
  4. Step 4: Simplify right side
    7,015.54x = 32,868,517.78
  5. Step 5: Solve for x
    x = 32,868,517.78/7,015.54
  6. Step 6: Final answer
    x = 4,685.10

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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.