Home / 13,557.23-20,333.75-3,697.31

Finding the Fourth Proportional to 13,557.23, 20,333.75 and 3,697.31

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Solution

The fourth proportional to 13,557.23, 20,333.75 and 3,697.31 is: 5,545.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.23 : 20,333.75 = 3,697.31 : x
  2. Step 2: Convert to fraction form
    13,557.23/20,333.75 = 3,697.31/x
  3. Step 3: Cross multiply
    13,557.23x = 20,333.75 × 3,697.31
  4. Step 4: Simplify right side
    13,557.23x = 75,180,177.21
  5. Step 5: Solve for x
    x = 75,180,177.21/13,557.23
  6. Step 6: Final answer
    x = 5,545.39

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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.