Home / 7,784.53-11,680.23-4,085.86

Finding the Fourth Proportional to 7,784.53, 11,680.23 and 4,085.86

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Solution

The fourth proportional to 7,784.53, 11,680.23 and 4,085.86 is: 6,130.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.53 : 11,680.23 = 4,085.86 : x
  2. Step 2: Convert to fraction form
    7,784.53/11,680.23 = 4,085.86/x
  3. Step 3: Cross multiply
    7,784.53x = 11,680.23 × 4,085.86
  4. Step 4: Simplify right side
    7,784.53x = 47,723,784.55
  5. Step 5: Solve for x
    x = 47,723,784.55/7,784.53
  6. Step 6: Final answer
    x = 6,130.59

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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.