Home / 8,157.30-12,235.34-2,611.23

Finding the Fourth Proportional to 8,157.30, 12,235.34 and 2,611.23

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Solution

The fourth proportional to 8,157.30, 12,235.34 and 2,611.23 is: 3,916.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.30 : 12,235.34 = 2,611.23 : x
  2. Step 2: Convert to fraction form
    8,157.30/12,235.34 = 2,611.23/x
  3. Step 3: Cross multiply
    8,157.30x = 12,235.34 × 2,611.23
  4. Step 4: Simplify right side
    8,157.30x = 31,949,273.81
  5. Step 5: Solve for x
    x = 31,949,273.81/8,157.30
  6. Step 6: Final answer
    x = 3,916.65

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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.