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Finding the Fourth Proportional to 8,379.94, 11,565.75 and 4,845.19

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Solution

The fourth proportional to 8,379.94, 11,565.75 and 4,845.19 is: 6,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.94 : 11,565.75 = 4,845.19 : x
  2. Step 2: Convert to fraction form
    8,379.94/11,565.75 = 4,845.19/x
  3. Step 3: Cross multiply
    8,379.94x = 11,565.75 × 4,845.19
  4. Step 4: Simplify right side
    8,379.94x = 56,038,256.24
  5. Step 5: Solve for x
    x = 56,038,256.24/8,379.94
  6. Step 6: Final answer
    x = 6,687.19

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1.5x scale

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.