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Finding the Fourth Proportional to 8,376.50, 11,559.72 and 4,650.50

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Solution

The fourth proportional to 8,376.50, 11,559.72 and 4,650.50 is: 6,417.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.50 : 11,559.72 = 4,650.50 : x
  2. Step 2: Convert to fraction form
    8,376.50/11,559.72 = 4,650.50/x
  3. Step 3: Cross multiply
    8,376.50x = 11,559.72 × 4,650.50
  4. Step 4: Simplify right side
    8,376.50x = 53,758,477.86
  5. Step 5: Solve for x
    x = 53,758,477.86/8,376.50
  6. Step 6: Final answer
    x = 6,417.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.