Home / 8,391.70-11,580.31-4,614.86

Finding the Fourth Proportional to 8,391.70, 11,580.31 and 4,614.86

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Solution

The fourth proportional to 8,391.70, 11,580.31 and 4,614.86 is: 6,368.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.70 : 11,580.31 = 4,614.86 : x
  2. Step 2: Convert to fraction form
    8,391.70/11,580.31 = 4,614.86/x
  3. Step 3: Cross multiply
    8,391.70x = 11,580.31 × 4,614.86
  4. Step 4: Simplify right side
    8,391.70x = 53,441,560.39
  5. Step 5: Solve for x
    x = 53,441,560.39/8,391.70
  6. Step 6: Final answer
    x = 6,368.38

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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.