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Finding the Fourth Proportional to 8,061.20, 12,069.93 and 4,157.90

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Solution

The fourth proportional to 8,061.20, 12,069.93 and 4,157.90 is: 6,225.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,061.20 : 12,069.93 = 4,157.90 : x
  2. Step 2: Convert to fraction form
    8,061.20/12,069.93 = 4,157.90/x
  3. Step 3: Cross multiply
    8,061.20x = 12,069.93 × 4,157.90
  4. Step 4: Simplify right side
    8,061.20x = 50,185,561.95
  5. Step 5: Solve for x
    x = 50,185,561.95/8,061.20
  6. Step 6: Final answer
    x = 6,225.57

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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.