Home / 13,572.90-20,362.03-6,557.78

Finding the Fourth Proportional to 13,572.90, 20,362.03 and 6,557.78

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Solution

The fourth proportional to 13,572.90, 20,362.03 and 6,557.78 is: 9,837.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.90 : 20,362.03 = 6,557.78 : x
  2. Step 2: Convert to fraction form
    13,572.90/20,362.03 = 6,557.78/x
  3. Step 3: Cross multiply
    13,572.90x = 20,362.03 × 6,557.78
  4. Step 4: Simplify right side
    13,572.90x = 133,529,747.60
  5. Step 5: Solve for x
    x = 133,529,747.60/13,572.90
  6. Step 6: Final answer
    x = 9,837.97

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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.