Home / 13,550.31-18,701.15-8,244.81

Finding the Fourth Proportional to 13,550.31, 18,701.15 and 8,244.81

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Solution

The fourth proportional to 13,550.31, 18,701.15 and 8,244.81 is: 11,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.31 : 18,701.15 = 8,244.81 : x
  2. Step 2: Convert to fraction form
    13,550.31/18,701.15 = 8,244.81/x
  3. Step 3: Cross multiply
    13,550.31x = 18,701.15 × 8,244.81
  4. Step 4: Simplify right side
    13,550.31x = 154,187,387.31
  5. Step 5: Solve for x
    x = 154,187,387.31/13,550.31
  6. Step 6: Final answer
    x = 11,378.88

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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.