Home / 8,140.30-11,232.15-4,555.33

Finding the Fourth Proportional to 8,140.30, 11,232.15 and 4,555.33

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Solution

The fourth proportional to 8,140.30, 11,232.15 and 4,555.33 is: 6,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.30 : 11,232.15 = 4,555.33 : x
  2. Step 2: Convert to fraction form
    8,140.30/11,232.15 = 4,555.33/x
  3. Step 3: Cross multiply
    8,140.30x = 11,232.15 × 4,555.33
  4. Step 4: Simplify right side
    8,140.30x = 51,166,149.86
  5. Step 5: Solve for x
    x = 51,166,149.86/8,140.30
  6. Step 6: Final answer
    x = 6,285.54

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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.