Home / 13,222.20-19,832.72-4,457.08

Finding the Fourth Proportional to 13,222.20, 19,832.72 and 4,457.08

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Solution

The fourth proportional to 13,222.20, 19,832.72 and 4,457.08 is: 6,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.20 : 19,832.72 = 4,457.08 : x
  2. Step 2: Convert to fraction form
    13,222.20/19,832.72 = 4,457.08/x
  3. Step 3: Cross multiply
    13,222.20x = 19,832.72 × 4,457.08
  4. Step 4: Simplify right side
    13,222.20x = 88,396,019.66
  5. Step 5: Solve for x
    x = 88,396,019.66/13,222.20
  6. Step 6: Final answer
    x = 6,685.42

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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.