Home / 13,088.40-19,629.66-3,728.22

Finding the Fourth Proportional to 13,088.40, 19,629.66 and 3,728.22

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Solution

The fourth proportional to 13,088.40, 19,629.66 and 3,728.22 is: 5,591.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.40 : 19,629.66 = 3,728.22 : x
  2. Step 2: Convert to fraction form
    13,088.40/19,629.66 = 3,728.22/x
  3. Step 3: Cross multiply
    13,088.40x = 19,629.66 × 3,728.22
  4. Step 4: Simplify right side
    13,088.40x = 73,183,691.01
  5. Step 5: Solve for x
    x = 73,183,691.01/13,088.40
  6. Step 6: Final answer
    x = 5,591.49

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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.