Home / 13,830.36-20,737.80-9,453.12

Finding the Fourth Proportional to 13,830.36, 20,737.80 and 9,453.12

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Solution

The fourth proportional to 13,830.36, 20,737.80 and 9,453.12 is: 14,174.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.36 : 20,737.80 = 9,453.12 : x
  2. Step 2: Convert to fraction form
    13,830.36/20,737.80 = 9,453.12/x
  3. Step 3: Cross multiply
    13,830.36x = 20,737.80 × 9,453.12
  4. Step 4: Simplify right side
    13,830.36x = 196,036,911.94
  5. Step 5: Solve for x
    x = 196,036,911.94/13,830.36
  6. Step 6: Final answer
    x = 14,174.39

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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.