Home / 7,941.30-11,899.14-4,657.15

Finding the Fourth Proportional to 7,941.30, 11,899.14 and 4,657.15

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Solution

The fourth proportional to 7,941.30, 11,899.14 and 4,657.15 is: 6,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.30 : 11,899.14 = 4,657.15 : x
  2. Step 2: Convert to fraction form
    7,941.30/11,899.14 = 4,657.15/x
  3. Step 3: Cross multiply
    7,941.30x = 11,899.14 × 4,657.15
  4. Step 4: Simplify right side
    7,941.30x = 55,416,079.85
  5. Step 5: Solve for x
    x = 55,416,079.85/7,941.30
  6. Step 6: Final answer
    x = 6,978.21

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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.