Home / 8,109.63-11,191.25-4,572.87

Finding the Fourth Proportional to 8,109.63, 11,191.25 and 4,572.87

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Solution

The fourth proportional to 8,109.63, 11,191.25 and 4,572.87 is: 6,310.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.63 : 11,191.25 = 4,572.87 : x
  2. Step 2: Convert to fraction form
    8,109.63/11,191.25 = 4,572.87/x
  3. Step 3: Cross multiply
    8,109.63x = 11,191.25 × 4,572.87
  4. Step 4: Simplify right side
    8,109.63x = 51,176,108.52
  5. Step 5: Solve for x
    x = 51,176,108.52/8,109.63
  6. Step 6: Final answer
    x = 6,310.54

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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.