Home / 13,444.84-18,550.98-8,139.88

Finding the Fourth Proportional to 13,444.84, 18,550.98 and 8,139.88

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Solution

The fourth proportional to 13,444.84, 18,550.98 and 8,139.88 is: 11,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.84 : 18,550.98 = 8,139.88 : x
  2. Step 2: Convert to fraction form
    13,444.84/18,550.98 = 8,139.88/x
  3. Step 3: Cross multiply
    13,444.84x = 18,550.98 × 8,139.88
  4. Step 4: Simplify right side
    13,444.84x = 151,002,751.08
  5. Step 5: Solve for x
    x = 151,002,751.08/13,444.84
  6. Step 6: Final answer
    x = 11,231.28

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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.