Home / 8,109.15-11,190.47-4,572.36

Finding the Fourth Proportional to 8,109.15, 11,190.47 and 4,572.36

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Solution

The fourth proportional to 8,109.15, 11,190.47 and 4,572.36 is: 6,309.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.15 : 11,190.47 = 4,572.36 : x
  2. Step 2: Convert to fraction form
    8,109.15/11,190.47 = 4,572.36/x
  3. Step 3: Cross multiply
    8,109.15x = 11,190.47 × 4,572.36
  4. Step 4: Simplify right side
    8,109.15x = 51,166,857.41
  5. Step 5: Solve for x
    x = 51,166,857.41/8,109.15
  6. Step 6: Final answer
    x = 6,309.77

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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.