Home / 9,129.20-13,693.89-3,206.22

Finding the Fourth Proportional to 9,129.20, 13,693.89 and 3,206.22

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Solution

The fourth proportional to 9,129.20, 13,693.89 and 3,206.22 is: 4,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.20 : 13,693.89 = 3,206.22 : x
  2. Step 2: Convert to fraction form
    9,129.20/13,693.89 = 3,206.22/x
  3. Step 3: Cross multiply
    9,129.20x = 13,693.89 × 3,206.22
  4. Step 4: Simplify right side
    9,129.20x = 43,905,624.00
  5. Step 5: Solve for x
    x = 43,905,624.00/9,129.20
  6. Step 6: Final answer
    x = 4,809.36

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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.