Home / 8,753.09-13,131.79-2,909.75

Finding the Fourth Proportional to 8,753.09, 13,131.79 and 2,909.75

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Solution

The fourth proportional to 8,753.09, 13,131.79 and 2,909.75 is: 4,365.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.09 : 13,131.79 = 2,909.75 : x
  2. Step 2: Convert to fraction form
    8,753.09/13,131.79 = 2,909.75/x
  3. Step 3: Cross multiply
    8,753.09x = 13,131.79 × 2,909.75
  4. Step 4: Simplify right side
    8,753.09x = 38,210,153.02
  5. Step 5: Solve for x
    x = 38,210,153.02/8,753.09
  6. Step 6: Final answer
    x = 4,365.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.