Home / 9,219.12-13,828.67-2,645.81

Finding the Fourth Proportional to 9,219.12, 13,828.67 and 2,645.81

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Solution

The fourth proportional to 9,219.12, 13,828.67 and 2,645.81 is: 3,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.12 : 13,828.67 = 2,645.81 : x
  2. Step 2: Convert to fraction form
    9,219.12/13,828.67 = 2,645.81/x
  3. Step 3: Cross multiply
    9,219.12x = 13,828.67 × 2,645.81
  4. Step 4: Simplify right side
    9,219.12x = 36,588,105.45
  5. Step 5: Solve for x
    x = 36,588,105.45/9,219.12
  6. Step 6: Final answer
    x = 3,968.72

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Similar ratio
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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.