Home / 8,109.01-11,190.76-4,572.15

Finding the Fourth Proportional to 8,109.01, 11,190.76 and 4,572.15

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Solution

The fourth proportional to 8,109.01, 11,190.76 and 4,572.15 is: 6,309.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.01 : 11,190.76 = 4,572.15 : x
  2. Step 2: Convert to fraction form
    8,109.01/11,190.76 = 4,572.15/x
  3. Step 3: Cross multiply
    8,109.01x = 11,190.76 × 4,572.15
  4. Step 4: Simplify right side
    8,109.01x = 51,165,779.94
  5. Step 5: Solve for x
    x = 51,165,779.94/8,109.01
  6. Step 6: Final answer
    x = 6,309.74

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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.