Home / 13,153.87-19,728.60-3,793.51

Finding the Fourth Proportional to 13,153.87, 19,728.60 and 3,793.51

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Solution

The fourth proportional to 13,153.87, 19,728.60 and 3,793.51 is: 5,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.87 : 19,728.60 = 3,793.51 : x
  2. Step 2: Convert to fraction form
    13,153.87/19,728.60 = 3,793.51/x
  3. Step 3: Cross multiply
    13,153.87x = 19,728.60 × 3,793.51
  4. Step 4: Simplify right side
    13,153.87x = 74,840,641.39
  5. Step 5: Solve for x
    x = 74,840,641.39/13,153.87
  6. Step 6: Final answer
    x = 5,689.63

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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.